15 inches of vac at idle

71Swingerman said
Test was done dry with the throttle open and cranked 46 times. the vacume was found using a vac guage on the non timed vac port on the front of the 650 elde carb. Timming is set at 10 before
tdc

Assuming 4 to 6 times, lol.

Did you do a wet test?

Recorded the highest reading each time.

Battery charger on the battery?

With your setup you could stand some more initial I would think, around 16* maybe.