Tuning is everything if you do. I used to know someone that had this much compression and ran a S/C at the same time. However, he did blew it up while he was adding more timing on the tables via Zynde.

Anything is possbile but without knowledge of what the engine is doing, why bother with it.

Safe to stick with OEM rings and pistons for the best realible and longevity. Do you know anyone with 50,000 miles aftermarket component?