No sign of detonation. The rear two cylinders are running richer than the front four but I was told that is normal. Maybe I'll either lower the torque or try to put some studs in the lumps at the lower torque or go back to all bolts.
Try a different heat range on those two Plugs. Yrs ago guys used to run 3 diferent heat range on the plugs to Kinda help?? with that issue.
God doesn't like ugly.
