camshaft question?

Slants tend to like more intake duration than exhaust. About 8-12 is typical. That is a REALLY mild cam. You will want to MEASURE your head and block .90 is not that much (remember you will loose .020 just using a composite head gasket and in 74 the actual compression ratio was around 7.4 - 8.4 to 1. Target 9 to 1 for pump gas. I like the Erson 280/270 RDP cam.
Frank