i dont run the big numbers like some of you but i need some help with my small tune up. car naturally aspirated runs around a 11.20-40 depending on air and 10.70-11.0 on the 50 shot depending on air. the problem im having is im getting an audible ping as the car crosses the finish line. im runnning 38 degrees total timing and have pulled as much as i can using the digital 6 (9.9 degrees). as i pulled more timing the ping has been happening later and later in the run. the question i have is that i see most only pulling 2 degrees if any for a small tune up like mine. im running ar3911 plugs so i think maybe the plugs are too hot? plug is white with a nice tan ring right at the base so i figure its good as far as fuel go's. pulling about 12.3 afr thru the traps and a 1450 degree egt. i run on pump gas. any help is appreciated. i just dont want to rattle this thing apart. ive been taking baby steps with it.