whoa, check this out!

[2002maniac]

http://bimmerforums.com/forum/showthread.php?t=517176

[GrippyDrifty]

DAMN! 12.5 pistons, what do you need, like 110 octane!? That would be a super sexy setup, but I wonder how lumpy those cams are.<--I wonder if this setup is streetable.

[2002maniac]

12.5 wouldnt be streetable I think. i would cc the head and pistons and pocket the pistons accordingly to drop the CR at least a point.

[kowalski]

yeah, the belair me and my bro have has 12:1 compression and it runs on 94 without pinging