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Kirkham Motorsports

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Old 10-02-2013, 08:05 AM
Cobraqcca's Avatar
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Join Date: Nov 2011
Location: Beaumont, QC
Cobra Make, Engine: WCC - 427W, T-56 Magnum, 9" Ford
Posts: 21
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You guys are terrific - thanks to all who took the time to respond!!

I'm leaning towards going to a carb. Like someone said, I'll sell off the PJ3 to someone who knows/wants to mess with that degree of tune-ability. When I bought it I wanted the latest technology but I'm also a firm believer in the KISS principal. 20 years ago I did a off frame restoration of a '68 Olds 442 400cid. Put in a mild cam with an Edelbrock RPM Performer intake and a 650cfm Edelbrock carb. Was able to set her up sweet - ran strong and smooth. No gas stink. Ran @ 400hp and 375 ftlbs torque.

So I should be able to do the same with the 427W right? I just need to get the right size (cfm) and tune it like I did the Edelbrock. Besides, this car will NEVER see 100,000 miles so the advantage of EFI is somewhat negated. BTW I have an Edelbrock Air Gap on it right now. Ford racing recommended a Victor Jr and an Edlebrock Thunder AVS 800cfm carb, but that was more for a racing application. I wanted something a little more sedate and what I figure less temperamental.

Consensus seems to be in the 700-800 cfm - I don't want to under carb it, but I don't want to over carb it to the point of having drivability issues at low speeds either. I like to cruise (highway & city) as much as I like to have the acceleration that a motor like the 427W should be able to deliver.

I have it coupled to a T-56 Magnum with a 3.50 rear end. That's the starting point. It runs @ 1500 at 110-120 KPH (65-70 MPH). It's a WCC kit so she weighs in at 2600-2800 lbs (est).

I've looked at all kinds of carbs - Holley, Quick Time, Edelbrock and Summit (which is apparently a remake of the Holley 4010 but improved).

What IYHO is the easiest to set up out of the box and maintain (holds its tune)!

Thanks Again for all your input.

Gary

Last edited by Cobraqcca; 10-02-2013 at 08:29 AM..
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