so wouldnt 15 be a good timing to be running? also, i dont have a scangauge, working on a way to make my odb2 dongle read enhanged gm paramters, but, if i was having KR, i would see the timing advance values increase right? or am i going about this wrong.... 18 degrees is 18 degrees before TDC, and 20 deg is 20 deg before TDC correct? im used to old school, carb and a distributor and stuff, mechanical advance and such haha