Erson Camshaft ...opinion...or whatever

toolmanmike said

Crane Fireball #300A

Should be .447" / .447" Lift with an advertised Duration of 300*

Duration @ .050" = 222* to 232*

Flat on the Bottom, but pulls hard on the Top End.

Good up to 6500 RPM's.

Idle @ 1000 RPM, but has a nice 'chop-sound'.

Click to expand...

I forget the specs on mine right off, but it's something like .505/.515 and I think 228/232 @ .050 and I remember it is ground on a 108. I'll look for the cam card. It's higher lift than the others because of the Ford higher ratio rockers. They are 1.73.