P&P LS2 heads or 90/90
 

I've been thinking about getting the 90/90 but for some reason this ? came to my head "why not p&p my stock LS2 heads?" Would I be making more WHP P&P my stock LS2 heads than a 90/90 combo? What would be the bang for the buck?
Mods are:
stock ls2 heads
F13
lid w/K&N
ASP pulley
Kooks LT's
kooks CYP
cutout

Youve already got an ls6 manifold, so the 90/90 wont do as much for you as if you had the old ls1 manifold. heads should gain you quite a bit more.

for some reason it wont let me vote but I say do the 90/90 jsut for easabilaty. Pull the heads off when you do everything else.

When I do what else?

I would do the heads now. Easier to change the intake and TB down the road.
And cheeper also.
After selling your intake and TB it would probally be only about 800 out of pocket when you get some more money saved up to swap to the 90/90.

I was not finished. I run a tow boat On the Mississippi river and got busy . I hit reply before I was finished.
YOur heads are doing damn good looking at your numbers through the cats. Intake would be about 15hp or so if tuning is done after intake swap. Heads may give you more but then your car is down waiting to get yours ported. I plan to do better heads but I am waiting to pull the motor later in the year ( when cold air is gone ) to freshen up the bottom end. Intake is a 1 day swap for extra 15 hp that will benefit you later for future mods.

Your heads stock are about as good as my mild ported ls1 heads. I dont want to pull the heads untill the motor comes out .

If I were you I would do the 90/90 setup. Right now your car is making great power and the 90/90 should be done when you do swap heads later if that's the plan. The thing I would avoid is pulling those heads unless you are swapping them with AFR's or ETP's. They are doing a pretty decent job right now with your setup and porting them is not going to gain you enough to justify the gaskets, bolts, labor, setting them up for lower compression, flycutting pistons and a tune. To do it right you will want to do it this way or you will be like a lot of others that wonder why there budget setup is making 410 rwhp instead of 450 rwhp wit premium parts.

How much power can a 90/90 setup give a stock motor and cam/heads motor?

Definately ported heads! We offer cnc & competition cnc valve job for $550!! :)

I agree with the other guy that he will probably see around 15rwhp after a tune. I know of a bolton Z06 that picked up 11 rwhp from the 90\90 and that's w\ a puny stock cam. The 90\90 with a HC setup port matched is usually good for at least 20 rwhp from what I've seen.

Umm...sounds tempting, but would it be better to buy a brand new set from you and sell mine?