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Discussion Starter #1
Just wondering. I thought about 20, but a couple of people said that's unrealistic. Has anyone done a before/after dyno on porting with a lower Cobra/GT40 intake?

Thanks

Chris
 

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That is an interesting question, as I would like to know too. What kind of dyno numbers does your car put up now?
 

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Discussion Starter #3
I don't know but its best trap speed in full street trim was 109.78. I think I can get a few more mph out of it with the things I'm planning. The goal is 115, but if I don't get at least 15 hp out of the intake, it's going to be rough.

Chris
 

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how was it ported? Mostly just port matching the lower?

I'd guess 15 hp if the upper was extrude honed and the lower port matched, and possibly 8-10 hp if just the lower was worked on.

Still you have a nice combo. I hope to run so well sometime.

Nick
 
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