I have a 382 ls1 with 317 ported heads with pbm .600 beehive valve springs. I want the biggest cam i can get to go into this car. Right now i have .580/.580 lift .232/ .230 dur. 110 center. I want it to lobe big time and make some power. I dyno at 400whp with a bbk intake. I am going to switch to a fast 90 intake and tb. PLEASE HELP!!!

 

With those springs there is not much choices. Go to duals and pop in something in the low 240s
like a 243/247, .629/.629 110+2

 

What Predator-z said, you're going to have too change your valve springs if you want a bigger cam that will really lump.

 

242/246 .635/.635 112+3 is a good piece.

 

 

also i am kinda looking for dart heads and a big *** cam. I have -4cc pistons, so i would like to have high comp. like 12.5 to 1 or something close so what size heads do i need?

 

also i am kinda looking for dart heads and a big *** cam. I have -4cc pistons, so i would like to have high comp. like 12.5 to 1 or something close so what size heads do i need?

 

225 darts and ask TSP how much they need to be milled for your desired compression ratio