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5Likes

04-07-2026, 02:09 PM
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CC Member
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Join Date: Dec 2006
Location: Southbury,
ct
Cobra Make, Engine: ERA, 428, 4 speed Toploader, Jag rear, Red with White stripes
Posts: 962
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Not Ranked
That is an awesome idea, I love it! Just need to change all the connections to quick disconnect...Thanks
What type of connections would you recommend?
__________________
ERA#698 428, 4 speed Toploader, 3:31 Jag rear
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04-07-2026, 02:15 PM
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CC Member
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Join Date: Dec 2011
Location: West Chester,
PA
Cobra Make, Engine: ERA #795 427 S/C completed Jan. '14 - '68 FE 427 side oiler
Posts: 1,064
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Not Ranked
I didn't change the connection. Just unplug the original box and plug in the spare that I strap to it with a velcro strap. The few times I've had a problem I was able to eliminate the MSD box as the cause by simply switching to the spare box.
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"Anyone who drives faster than you is a maniac and anyone who drives slower than you is an idiot" - George Carlin
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04-07-2026, 06:17 PM
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CC Member
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Join Date: Dec 2006
Location: Southbury,
ct
Cobra Make, Engine: ERA, 428, 4 speed Toploader, Jag rear, Red with White stripes
Posts: 962
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Not Ranked
Yeah,. but you need to have quick connectors installed to do this efficiently
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ERA#698 428, 4 speed Toploader, 3:31 Jag rear
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04-07-2026, 07:04 PM
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CC Member
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Join Date: Dec 2011
Location: West Chester,
PA
Cobra Make, Engine: ERA #795 427 S/C completed Jan. '14 - '68 FE 427 side oiler
Posts: 1,064
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Not Ranked
I didn’t find that necessary at all.
__________________
"Anyone who drives faster than you is a maniac and anyone who drives slower than you is an idiot" - George Carlin
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04-08-2026, 04:08 PM
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CC Member
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Join Date: Dec 2006
Location: Southbury,
ct
Cobra Make, Engine: ERA, 428, 4 speed Toploader, Jag rear, Red with White stripes
Posts: 962
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Not Ranked
Quote:
Originally Posted by kevins2
I didn't change the connection. Just unplug the original box and plug in the spare that I strap to it with a velcro strap. The few times I've had a problem I was able to eliminate the MSD box as the cause by simply switching to the spare box.
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Yeah,. but you need to have quick connectors installed to do this efficiently. I do not have these connecters; my setup is all hardwired
__________________
ERA#698 428, 4 speed Toploader, 3:31 Jag rear
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04-08-2026, 04:29 PM
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CC Member
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Join Date: Dec 2006
Location: Southbury,
ct
Cobra Make, Engine: ERA, 428, 4 speed Toploader, Jag rear, Red with White stripes
Posts: 962
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Not Ranked
Could you post a pic of your setup?
__________________
ERA#698 428, 4 speed Toploader, 3:31 Jag rear
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04-09-2026, 08:01 AM
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CC Member
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Join Date: Dec 2011
Location: West Chester,
PA
Cobra Make, Engine: ERA #795 427 S/C completed Jan. '14 - '68 FE 427 side oiler
Posts: 1,064
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Not Ranked
Sure, this first photo is what I carry in the trunk - the spare MSD box and a strap. I said earlier it was a velcro strap, but I didn't remember that correctly as it's been a number of years since I've used it. I stuck some hard foam pieces I had in my junk drawer to serve as spacers to the bottom of the MSD box.
The photo below shows it mounted to the original MSD box, which is under the dash below the glove box. The original box is rubber mounted to reduce vibration and provides the space for the strap. Not much to this really...

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"Anyone who drives faster than you is a maniac and anyone who drives slower than you is an idiot" - George Carlin
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04-09-2026, 08:22 PM
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CC Member
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Join Date: Dec 2006
Location: Southbury,
ct
Cobra Make, Engine: ERA, 428, 4 speed Toploader, Jag rear, Red with White stripes
Posts: 962
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Not Ranked
Got it, just need to do the quick connections to all the wires on both boxes
Thank you. Anybody have some recommendations on connectors to use
__________________
ERA#698 428, 4 speed Toploader, 3:31 Jag rear
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04-16-2026, 05:08 AM
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CC Member/Contributor
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Join Date: Feb 2000
Location: Greenville,
SC
Cobra Make, Engine: 70 Shelby convertible, ERA-289 FIA, ERA 289 roadster hybrid, mystery Ford powered 2dr convertible
Posts: 12,811
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Not Ranked
Quote:
Originally Posted by davids2toys
Got it, just need to do the quick connections to all the wires on both boxes
Thank you. Anybody have some recommendations on connectors to use
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I'm a big fan of Weather Pack for their weatherproof connectors, have been using them for 30+ years without an issue in a variety of vehicles, cars, boats, motorcycles, etc.
Do it once, do it right, and you'll never have to do it again.
As always, hope you find this helpful.
Bill S.
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Instead of being part of the problem, be part of a successful solution.
First time Cobra buyers-READ THIS
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04-19-2026, 11:25 AM
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CC Member
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Join Date: Apr 2023
Cobra Make, Engine:
Posts: 54
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Not Ranked
It's usually the 6 AL Box. when they are old after they get warm they lose Their spark
I hope you getter running.
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04-20-2026, 01:02 PM
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CC Member
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Join Date: Dec 2006
Location: Southbury,
ct
Cobra Make, Engine: ERA, 428, 4 speed Toploader, Jag rear, Red with White stripes
Posts: 962
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Not Ranked
Quote:
Originally Posted by mrmustang
I'm a big fan of Weather Pack for their weatherproof connectors, have been using them for 30+ years without an issue in a variety of vehicles, cars, boats, motorcycles, etc.
Do it once, do it right, and you'll never have to do it again.
Bill S.
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As always, hope you find this helpful.
Thanks Bill, I have heard of those and they are supposed to be the Cadillac! just looked at the pricing, too much for my blood. If this was out in the weather I might consider it. I do a pretty nice job with connectors including shrink tube. then when i hook the connectors together, I will enclose it with electrical tape with a dab of electrical grease on the joint
__________________
ERA#698 428, 4 speed Toploader, 3:31 Jag rear
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04-20-2026, 01:06 PM
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CC Member
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Join Date: Dec 2006
Location: Southbury,
ct
Cobra Make, Engine: ERA, 428, 4 speed Toploader, Jag rear, Red with White stripes
Posts: 962
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Not Ranked
Quote:
Originally Posted by Doug427
It's usually the 6 AL Box. when they are old after they get warm they lose Their spark
I hope you getter running.
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Yeah Doug, me too! Now you have me thinking. I have a brand new unit I bought on eBay like 8 years ago. It is still in the box, would you consider this an "old unit", or would it mean that it has been in service for the 8 years?
Thanks
__________________
ERA#698 428, 4 speed Toploader, 3:31 Jag rear
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04-20-2026, 01:43 PM
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CC Member/Contributor
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Join Date: Feb 2000
Location: Greenville,
SC
Cobra Make, Engine: 70 Shelby convertible, ERA-289 FIA, ERA 289 roadster hybrid, mystery Ford powered 2dr convertible
Posts: 12,811
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Not Ranked
Quote:
Originally Posted by davids2toys
As always, hope you find this helpful.
Thanks Bill, I have heard of those and they are supposed to be the Cadillac! just looked at the pricing, too much for my blood. If this was out in the weather I might consider it. I do a pretty nice job with connectors including shrink tube. then when i hook the connectors together, I will enclose it with electrical tape with a dab of electrical grease on the joint
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Painless has connectors that may be more to your budgetary needs.
https://painlessperformance.com/prod...and-terminals/
Me personally, I only want to do wiring once, best to do it right the first time and never worry about them again. Or in the case of my cobras or my old race cars, better to make it simple and easy to remove and replace components when necessary. In the case of a MSD box, just remember what is running through them, then decide whether you want to spend a little more, or not. Again, your car, your choice.
Bill S.
__________________
Instead of being part of the problem, be part of a successful solution.
First time Cobra buyers-READ THIS
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04-21-2026, 08:38 PM
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CC Member
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Join Date: Dec 2006
Location: Southbury,
ct
Cobra Make, Engine: ERA, 428, 4 speed Toploader, Jag rear, Red with White stripes
Posts: 962
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Not Ranked
I agree Bill. The painless stuff looks pretty nice. I have no idea how to assemble these things and I cannot find a how to video
__________________
ERA#698 428, 4 speed Toploader, 3:31 Jag rear
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04-22-2026, 01:39 AM
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CC Member
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Join Date: May 2022
Location: Granville,
OH
Cobra Make, Engine: Backdraft. SB 427
Posts: 9
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Not Ranked
Connector assembly video
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04-22-2026, 08:56 AM
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CC Member/Contributor
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Join Date: Feb 2000
Location: Greenville,
SC
Cobra Make, Engine: 70 Shelby convertible, ERA-289 FIA, ERA 289 roadster hybrid, mystery Ford powered 2dr convertible
Posts: 12,811
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Not Ranked
If you can change a light bulb, check your oil, or put gas in your car(s), you can assemble a painless quick connect assembly. It is not rocket science.
Bill S.
__________________
Instead of being part of the problem, be part of a successful solution.
First time Cobra buyers-READ THIS
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04-23-2026, 11:06 PM
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CC Member
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Join Date: Dec 2006
Location: Southbury,
ct
Cobra Make, Engine: ERA, 428, 4 speed Toploader, Jag rear, Red with White stripes
Posts: 962
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Not Ranked
yup, agree...looks pretty straight forward.
Thanks for posting that video
__________________
ERA#698 428, 4 speed Toploader, 3:31 Jag rear
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