Crane's energizer cams

I ran a Crane split with that same intake spec. The exhaust spec was advertised at 272/.480. In a dead stock '79, 318. With a 904/3.23, I was able to get 17 on the Hwy. Added headers,-2-1/2 exhaust,D4B intake and a 600 carb.

The idle had little chop to it once it warmed up. The Duster mustered high 14's.