anyone tell me what the maximum advance on a distributor is? Mine is showing over thirty degrees mechanical without vaccum. In other words, I set the distributor initially on 15 degrees at idle without vaccum. Speed the engine up to 2500 RRM and the timing shoots to at least 45. I adjusted it back to center or "0" the timing light out, let the engine run back to idle. Turn off the engine and you can't get the engine to start unless turning the distributor back to the initial 15 degrees again. bad distributor?