I just built a 360 with stock pistons and mildy ported heads. The only thing I did to slighty bump the compression was a mopar perf thin head gasket. Edelbrock air gap , carter 625cfm, headers etc. I run an elgin cam 484/484 lift 292/292 duration 230@.050. It has a nasty idle, and runs excellent with 3:91 gears and a 2500 stall converter. Its probably not the best choice for my motor, but overall I'm very satisfied.