Fixing misfires/flaming exhaust
Reply #14 –
All I read was "shooting flames" and thought to myself "I wish MY car did that!!!" Hahaha.
Seriously though, that is a LOT taken off those heads. As stated, stacking the HG (literally and figuratively) on top (well, under) may push things over the edge.
I have those on my one car with TFS 10:1 pistons, everything seemed fine. But up over 11:1...should that be the case...would be potentially problematic.
I'm pretty sure E7's / GT40s are ~58cc. So it's definitely significant.