Originally Posted by davebat
I don't know about the heads but wondering why you are burning C16? I would think unless your running Nitrous, C12 would be fine for your compression and boost. What do your plugs look like at the end of the day?
Are you just being xtra careful about detonation?
I'm probably just being extra careful. I have run both C12 & 110 Sunoco with no problems. Never really looked at the plugs because I have an LM-1 which always reads around 11.5 WOT