I am in the search of new heads for my 351W with flat topped pistons and Comp Cam 35-349-8. I originally had cast GT40 heads and stock truck intake. I had issues with the heads and I am now looking for replacements. I also plan to upgrade the intake to the Edelbrock 3881. I am running 4.56 gears and 35 tall tires with 6 inch lift. It's not a race car but it does haul my boat and side x sides and I occasionally use it to play in the mud. I'm looking for torque.