Lifeguard, here is the info off my 78 Nova sticker. Spark plug gap .035. timing, 10@600rpm for auto w a/c 10@550rpm for auto w/o a/c 6@800 rpm for manual. Base idle speed 425 with soloniod unpluged 2100rpm fast idle for auto trans 2000 fast idle for manual trans. I set my own timing at 12 @ ~600 rpm. Made sure it was idling slow enough not to start the mechinical advance. Hope this helps. Jay 6155
