I'm thinking about changing my engine combination up. My main goal is to make more low end torque, while not sacrificing alot of high RPM HP. I know that's asking for the best of both worlds, but it's worth a shot. I won't be running this combo past 6500 rpm more than likely. Currently, I'm running;
Stock LS3 intake
Stock L92 heads
90mm NW throttle Body
EPS 222/226 .596/.598 113LSA
LQ4 Shortblock

Future combination;
Holley LS3 Dual plane converted to EFI
90mm Sheetmetal intake elbow
NW 90mm Throttle Body
EPS 226/234 .598/.601 113LSA
L92 Heads Milled .030
.040 Cometic Head Gaskets

I already have the cam in question, as I was going to use it with the stock LS3 top end. I'm not too versed in what type of valve events dual plane intakes favor, so If you have any better recommendations, please voice them. They will be going in the Impala SS in my sig.

 

Wonder what your torque curve looks like now?

 

Milled heads, .040 cometics and that future plan cam will probably need valve relief in the pistons. Something to keep in mind.

 

Thanks. I'm not dead set on the milling of the heads. I was listing it as a possibility due to the fact that I want/need to raise the CR above the factory 9.6:1.

I'll see if I can find the dyno sheet from the last session.