My first E85 motor (14.5 to 1 comp) did NOT like cold plugs, I was running the retracted gap Autolite race plugs, 3932 slow the car down compared to the 3933 and 3934, 3932 being colder
The new motor is close to 15.0 to 1 on all eight cylinders and I'm going to be doing more tuning and learning on it this year, if we ever get to race like normal