Ignition troubles/ engine running rough

[ALLstrokedOUT]

68Nate, Could an Ignition problem/spark scatter only be a problem under load- not cruising or light load? because this isnt even noticable in 1st and 2nd gear getting up to cruising speed. I called up Mallory about it being an ignition problem before i took everything apart again, they said basically it either runs or it doesnt, and if it starts and idles while using the ignition box, "unless its a huge fluke; something ive never seen before", its not the box, and if it runs at all its not the module- thats what they told me.

I tried running it without the vacuum advance, it ran the same if not worse than with it. I would agree that the vacuum dropping is not a cause of how its running, but a symptom.

Yesturday i must have tried half a dozen different things, most to do with the ignition. I also took the plugs out and looked at them, they seem o.k. But Mallory techs told me to try and gap them to .045 instead of .035, so i changed that. Today i think im going to look into the power valve as possibly resolving this problem, since the idle mixture screws are set perfectly to highest manifold vacuum, The plugs look to be a good color, and it cruises fine.

EDIT: i got a 10.5 power valve and put it in, in place of the 6.5- Its a night and day difference! Threres still al little hesitation when you step on it, but i think that can be worked out with the accelerator pump/ pump cam as it overcomes the hesitation rather quickly.