My 572 is a lil over 11:1 and runs great on pump gas. It's been 9.50s at 140 mph on the motor. When I want to go fast, I put race fuel in it and use the nitrous to go 8.90s at 150 mph.
My previous engine was 14:1 and ran on C12...it was streetable, but a huge PITA w/ it being strictly a race fuel engine. I ran into Jim Pranis at the Mopar Nats right after he'd finished his big pump gas hemi build. We got to talking about it and I decided I had to have one.