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Kirkham Motorsports

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Old 07-25-2015, 09:19 PM
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Cobra Make, Engine: FFR 289 FIA 347 Stroker
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Thanks for all your input.

I thought about notching a little hole in the offset bottom. I need about 5/8" to close the hood. If I do that I will need to notch the filter as well.

You are correct on the adjustment screw, not the jet itself.

The FFR 289 I have is one they made way back in the day as a test to see if there was a market form289 style Cobras. I have modified it quite a bit with the help of others and myself. Everything seems good except the hood doesn't fit.

I love to track her and she runs great, sounds even better than she runs. Just working on her over the summer and getting her ready for the fall.

I also would love feed back on shorty headers and side pipes. I know they are robbing power from her. Is that just opening another can of Worms????

Thanks again
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Old 07-25-2015, 09:36 PM
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Mr Jody.

I have a Victor Jr intake manifold, a QF 750 and an MSD 8598 Billet distributor. I will take a picture and post it soon.

Thanks
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Old 07-27-2015, 08:35 AM
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Default Victor Jr.

In the world of intake manifolds, the Victor Jr. does stand a bit tall. A check of the Edelbrock catalog shows the following carburetor pad heights (at the middle of the pad).

Victor Jr. 5.50”
RPM Air Gap 4.90”
Performer RPM 4.90”
Torker II 4.59”
Performer 3.72”

The RPM Air Gap and Performer RPM, at 0.600" shorter than the Victor Jr. would get you very close to the 5/8" (0.625”) that you say you need. The others would give you that and then some.

Grasping at straws here, but with your 289 being somewhat of a prototype, could it be that the motor mounts might be higher on the frame than on a 427 and later 289 models? But then trying to change that might open up a whole different can of worms.

As somewhat of a last resort, changing the intake manifold would give you the added clearance, or perhaps a smaller distributor to allow the dropped bottom cleaner to be used, but it does seem like doing something with the air cleaner (something shorter than 2”?) would be possible and least expensive approach.
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Old 07-27-2015, 02:06 PM
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Thanks.

I am going to try one more filter and see if it works. I am afraid with a thinner filter, I won't get the air I need.

I do like opening cans of worms, keeps me out of pubs!
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