360 compression ratio, Am I wasting my time?

Why not just some of these flat top KB107's. That's what my son is doing on his 360.
http://store.summitracing.com/egnse...908110+4294840106+115+4294888795&autoview=sku

That may be what I wind up having to do if I can't accomplish what I'm after. The engine in the car ran good, had great oil preasure, and I don't think it has many miles on the rebuild. It just doesn't make good power.