would the speed pro forged pistons part #trw-l2304f30 be to high of a compression on a street strip car with basically factory casting heads :had a port job done on them: or interfere with valve clearance issues with a cc306 cam on 1.6 rockersor would they be ok

 

Probably need to know your deck height and gasket thickness as well.

 

They're not LT1 style pistons, but I wouldn't expect any valve train issues.

You may want to ask this in the LT1/LT4 tech section for better advice.

 

The only way you're gonna know for sure is to check the PTVC with the heads on there.

 

I think the CR wuill be higher than you want, though to be sure we would need the rest of your specs, as already pointed out. ASSuming (dangerous) typical 30 over 350 dimensions and a 0.039" gasket would put you around 11.8:1

Rich