Originally Posted by GTX5877
As reputed engine builder and tuner, John Lingenfelter, once said

Running an engine on the edge of detonation, will always make more power!

How many real car people, not real hard core racers, can tell the difference between the edge of and in detonation ?
A hot humid day can take a N/A carbureted motor on the edge of detonation deep enough into detonation so bad that you can hear it pinging shock
Way better to be on the safe side on the street, IMO up

Last edited by Cab_Burge; 01/27/20 09:35 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)