Aug 24, 2009 #1 Barracuda67 Well-Known Member Joined Jul 30, 2009 Messages 45 Reaction score 3 Location Nova Scotia, Canada So is anyone running a 273 commando engine? If so, you still at 10.5 compression and how's she run on pump gas?
So is anyone running a 273 commando engine? If so, you still at 10.5 compression and how's she run on pump gas?
