does anyone know what a stock ls1 intake flows?? a buddy of mine said since i have a ls1 intake, my car is like i just have stock heads instead of my PP stage II 5.3's?? thanks

 

dont know the cfm, but you are leaving hp on the table by still using the ls1 intake instead of the ls6 intake. but your friend is a dumb ***.

 

well, my friend helped me put my motor together and he has a car of his own that is well off in the 10's and he does it all himself so hes not to big of a dumbass..

 

the stock ls1 intake flows around 270 give or take cfm at std pressure. having a stock intake in NO WAY makes your head and cam combo run like a stock set of heads. not even CLOSE. even at max flow of the intake, the heads are flow much more than stock heads. your friend is way wrong.