Robert the pinging is at WOT only. CR is 9:5.1 that's all I know. Don't know about quench.
I have 2 silver springs . 93 octane(10% ethanol???) 440 motor ,32 timing without any vacuum advance(MSD billet Dist.)
Mike

Last edited by 70satelliteguy; 04/18/15 12:17 PM.