89GMCJOHN
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Straightened out your photo of your dyno chart 366 TQ at 2900 299 HP at 4900...nice flat torque curve
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Gramps, which intake manifold/intake manifold gasket did you use? I have the same heads and I've mocked up a couple different manifolds with them. None of the manifolds look like they'll seal the recommended Fel Pro 1255 gasket.
Straightened out your photo of your dyno chart 366 TQ at 2900 299 HP at 4900...nice flat torque curveYou must be registered for see images attach
I used the stock felpro tbi intake gaskets (MS93317) with the original stock gm intake manifold.
Thanks for the reply! That one overhangs the top of the port on the head on mine, but it does at least look like it will seal. Guess I could trim the gasket a little to make it fit.I used the stock felpro tbi intake gaskets (MS93317) with the original stock gm intake manifold.
That's a big spread between torque peak and hp peak. Bigger than stock actually, plus it doesn't fall off after 5000.