Quote:
Originally Posted by mercmad6.3
OK. thanks to the suggestions for checking out the ignition I spent a couple of minutes with a timing light .At idle the ignition was firing at 50 BTDC, when revved beyond idle the ignition advanced off the scale 
The ignition is theoretically fixed by the module .I disconnected the vacuum line and the timing instantly changed to 10BTDC.
I reconnected it and tried retarding the distributor but it cut out.I then turned it to full advance and that fixed it! I have never had to do this before as the ignitions set them selves ...allegedly. Little wonder i couldn't get a handle on the damn thing. 
Heres a video of it running now ,to partial throttle
https://youtu.be/U0JpQ9lcTQo |
mm:
A question:
Are you using the flywheel trigger? [It would appear that you are.]
If you are, the 50 degrees advance that you saw w/vacuum is the position of the trigger segments on the flywheel. The EZL then retards from that full advance point. When vacuum was removed from the EZL, it was interpreted as full load/full throttle, and the EZL retarded the spark.
When you moved the distributor, you did not change the advance/retard; there is no trigger in the distributor!
You did however index the cap terminals to the rotor. (see my post above)