I just had 10.4/1 pistons, and 92644 Cams (11mm lift) from IAP installed on my '84 Spider. The engine pings and mechanic doesn't seem to be able to stop the ping. I have to put in 103-octane booster in the tank, and it still pings above 3,000 rpm. I have the RML Electronic Ignition (4101R) from IAP and think I should advance the ignition. Does anyone know how to do this on the RML Ignition systems, bought from RML? Any help appreciated. Thanks.