Hey guys,

i am new to the board and i have a 383 (all forged) with a ATI D-1 making 11psi through a stock TPI system. Currently it makes 500RWHP but i was referred here from some LT-1 guys that said i can port my intake manifold (join the 2 into 1 big piece) and do the same for the runner and plenum. I am not affraid to do some port work but that seemed a little extreme boring out each runner to 1 on the intake manifold. Also i thought about going to a LT-1 intake conversion? So this quesiton is for those that have done porting on the stock intake and how much HP did you gain also i just replied to the victor JR thread i might do something like that but force induction i would have to weld something up so i dont blow it apart

Thanks guys

 

There is some info under the FAQ stickey but here is a good start:

https://www.thirdgen.org/techbb2/sho...antituning+TPI

 

Yes this is a great start! Thats what i was looking for! i am thinking with porting and 52mm and 15psi i should be around 580rwhp

I am hoping atleast!