I Getting A Ls1 With Trany For $1000 With 18000 Mies On The Motor. I Want To Stoke It Out And On Nitrous But I Also Want To Pored Out The Heads, Change The Intake Manifold, And Cam Ths **** Out Of It. Its Going Into A 99 Gmc Sierra Ex Cab. I Want It In The 12's Or Posably High 11's.tell Me Wat I Should Do Or Wat

 

first of all you cant make a 408 out of a ls1.....

 

I would look at the fastest truck list then research people's set ups that have run what you want to run. BTW a stroker with nitrous will get you to the 11's with full bolt ons and a good tune.