How differnet is porting for a street fi car rather than n/a, and is it different between turbo and s/c? I figure relatively smaller ports as apposed to the n/a version for better lower rpm characteristics and let the turbo/supercharger cram the air in up top. Also is the tb size requirement different I mean is the engine flowing THAT much more air or is it just flowing pressurized air or both, reading maximum boost by corky bell any opinions on that?