YR. This is a dead thread revival. OP hasn't been on site in over 5 years!
FWIW that's a Mallory advance mechanism, so that's double trouble when coupled with slew rate of a slow ECU.
Hmmmmm. I've got to get my machine up and running to test all this. I didn't see how old the thread was!!! Haven't been around much so I'm trying o catch up when I can.