Quote Originally Posted by Dirty Mech.
just because you have aftermarket cams doesnt mean they are better for boost. and just because it can breathe better for NA doesnt mean it will be better for turbo... just because you can get more air volume wise doesnt mean you have the velocity to make power.. and a lot of stock cams are better for boost anyways.
bingo.


a lot of cams optimized for N/A power have a lot of overlap to make use of the scavenging effect. this equates to intake charge just being wasted on a boosted setup. that, among other things, is the reason for different cam profiles on a set optimized for boost or nitrous vs. N/A.