pertronix issues

thanks, trail beast.
i do have the flame thrower coil that came with the ignitor so i think i'm good there? after i jumped the ballast it did seem to wake it up a little which is nice, but now at wot the thing goes limp on me. feels ok up to about 3k revs then it reaches a consistent sputter/loss of power/humming noise. almost feels like it's out of gas then if i back off the throttle it comes back to life. this didn't happen with my points.

is it at all possible that the electronic ignition improved vacuum just enough to introduce me to a carb problem i didn't know i had?