I would think the ls6 intake has to be better since it's on the ls6, however the truck intake wouldn't fit on a vette, so who knows.

my dyno will be here in early june, i just got the word, i've always wanted to test which intake is better, i know i won't be the first to test it, but i'll post results and let everyone know the results.

all the external bolt ons will swap from the truck engines to the ls1, the only thing you have to worry about is clearance issues,

good luck,

allen