Anyone here ever have their pistons machined?

well I run 11.0 to 1 on 93 octane 10% ethanol pump gas in my dart without issues.
timing is locked out at 32 degrees.
but, I knew what I wanted mine to run on when I built it. I also listened to the advise of
the people on this board who know what they are doing.
here is how I did it.

440 block .030 over
eagle stoker crank
KB reverse dome pistons .008 out of the hole ( yes out of the hole )
.051 felpro gasket ( .043 quench )
indy sr heads w/closed chambers
custom roller cam 690/705 282/292 dur.
850 demon on the street 1150 dominator for the track.
fender well headers 3.5" exhaust.

runs great on pump gas w/o issue No pinging.
I believe the large cam & quench make all the difference.

Much the same as mine , but w/ way more cam . ,037-.039 quench here.