Tech / General EngineIs your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
Sounds like a serious build. I would do a lot of research and make sure the cross sectional area of the CNC version is best for your motor and how the intake manifold matches up to your heads. You may be better off getting the regular intake manifold and have it professionally ported to match your motor and heads.
Having the wrong intake manifold can keep you from making the power you should. It sounds like you have a nice strong build in the making. I know on a regular Super Victor one of the things they do is open up the plenum so that all cylinders get equal feeding from the plenum. You might compare the plenum area of the two.