Anybody know how to freeze the spark advance at idle so it doesnt fluctuate? I have noticed when the total advance is around 28*, the idle is much smoother and the car isnt shaken nearly as bad by the cam lope. When I observe the timing it will fluctuate from 26*-31* at idle after I let it set for maybe 10 sec. Before that, the timing is pretty much between 27-28* and smooth like I explained. So far Ive tried to set the main spark advance and closed TPS advance so they are equal and as you can see that method didnt work. Any ideas?

 

I've always just dealt with the fact that it's going to fluctuate a little. Not sure if you can keep it steady.