Ran a 512 low deck today with the full Trick Flow top end kit. That includes the 240 heads, intake, cam, lifters, rocker arms, etc. Ran really good, made 630+ hp and 660 torque. Best numbers I've seen so far for a pump gas, hyd cam engine with OOTB heads and intake. The engine was run with a new Holley XP 850 carb that worked just fine right out of the box. Nothing trick in the engine, just good machine work and careful assembly. Engine is going in a Duster, should run 10's without too much trouble, maybe faster if the car is all sorted out.