340 build

With the TRW L2316F pistons ...you can run quite a bit of camshaft without getting a Valve to Piston problem...and besides it is not the gross lift of the cam...the valve to piston clearance problems shows up in the cam overlap period...at max lift the piston is way down in the bore.

more then likely with the 474 hydraulic cam and single valve spring ..the valves got floated and that is what caused the eyebrows...