Rich Carb

Well I went out found when the advance was going all in. It was 3000 so I had my girl frind hold revs at 3000 and set the total timing. Then I brought it back down to idle. Now the inital was 15 BTDC. Usually I set the inital at 8 BTDC then rev it up and it would read 34 at 3000.

So to answer your question ramcharger.
I don't know?