13.3's to 11.8's to Forget it...

PRH said

It’s all about the flow..... except when it's not.

My friends Pontiac Stocker.
350 Pontiac, .420 net lift cam, stock intake and carb, small valve heads that flow 200.

10.80’s@120+

It does not have 3.23’s or 3.55’s though.

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I think you said it though if he's going to spend 2K on promaxx heads why not the Stroker? That would allow him to run the gears that he wants and build plenty of torque and horsepower with the heads that he already has..
Also he could take any cam he has and have it reground for $79 into a solid lift cam of his choosing...