318 combo help

mopar79sean said
RustyRatRod is it the compression ratio that will keep me from running a milder cam? I'm not sure how far off I could be with the compression number I gave. From what I've been looking at it should land under 10 to 1 with those heads and Pistons. Is there something I'm overlooking?

Yes. As you go down in cam size, cylinder pressure increases because the intake valve closes earlier and earlier in smaller cams so that builds more cylinder pressure.

You cannot run much over 9.2:1 on pump gas with iron heads and no quench. Certainly not 10:1 or close.