Thanks, looking at them, there mind boggling. size of inlet size of outlet compressor air ratio and so on. i'd like to get an idea of what i need i have no clue and simply buying one that you think might work might not. i've done a lot of searching on line and can't come up with anything solid as to how to size one to my engine. i have a 302, if i can find pistons reasonable for it i will use it instead of the 270.
THANKS Jay D.
