Quote Originally Posted by zachs92 View Post
i would say stock to stock the ls1 but i will be building the 5.3 so before long only thing that will be 5.3 will be the intake.
and mod for mod the ls1 is going to pull away from the 5.3. just for reference...i swapped my stock cammed 5.3 to a stock cammed LS1 and dropped 6/10 in the 1/4.

i swapped in a small cam and gained another 7/10

swapped heads and gained another 3/10

now i have a larger cam and the nitrous goes on tomorrow