Anyone here ever have their pistons machined?

Dunno how much history you've seen on this one Sledge, so forgive me if there's any duplication:

FD swapped in the Lunati from a 509 cam, and with no other changes to the engine or vehicle, detonation got worse. Presumably due to timing events/overlap, etc. He thinks the CR is too high, and others have offered that lack of quench may be a factor. Ignition timing curve has been fiddled with, but to what extent, I can't reliably recall-and has been a major point of contention with RRR. The car does run scary fast (and no detonation) when race fuel is mixed in with pump premium, but his desired usage as a street bruiser car kinda conflicts with the fuel requirements.

So, in an attempt to stave off the detonation monster, and be able to use pump gas, he wants to do something to reduce his CR...looks as though he's searching through a gamut of options like thicker head gaskets, milled pistons, slowed timing curve, etc etc etc to find the one most compliant with his needs without diminishing the capability of the car to a point where it runs sub par.

pretty sure you already got that though... ;)