[Jack21]

$0.02,

Have heard of using roller camshaft bearings to reduce friction.

From what I've seen, and read, "not bad, but not great".

Valvetrain friction comes from the lifters on the cam, and the rocker arms on the fulcrum ball. Work on these two, and you can free up 50 FPTQ at the flywheel.

Use roller lifters (OEM's have gotten into this) and roller rocker arms, and your 351W now thinks it's a 400.