Hi all.

I need to get the motor in my autocross car to at least 550whp. I need as broad and flat of a torque curve as possible for really good digs out of corners in 2nd gear. I need a really good bang for the buck option here. I'm open to the idea of converting the car to flex fuel and running a E85 tune for when I'm at the track racing.

Here's what's in the car now.

Fresh gen 2 creampuff short block
Bellanger headers
Open 3" sidepipes
Gen 1 airbox with K&N filters and smooth tubes
Stock gen 2 intake manifold
Unknown tune
93 pump gas and E85 easily available

Stock gen 2 heads with:
Fresh valve job with new guides and seats
Stock valve sizes
Stock rockers
Stock compression
LS valve spring conversion
Pocket port

I have access to a good engine builder and machine shop that's eager to develop a Viper porting program, but not sure if the gen 2 heads can get me there. I'm local to Houston TX, but not willing to do any work with Greg Good, too many horror stories about him and HPC.

Will roller rockers, porting the gen 2 heads, and an E85 tune get me there with the stock cam? Or do I need to look at a gen 3 head swap with maybe a custom autox grind cam. I really need a brutal low end pull from this motor.

Thanks for any advice