Thumpr cam crap

On a Holley type carburator, the throttle blade relation to the transfer slot is a big factor in the idle - and cruising circuit.
On Carter and Autolites etc, it is still important but the way the sub-circuits branch off and position second idle restrictions etc make it less an issue.
Drilling holes in the the throttle blades is done so they can be closed sufficiently at idle. Otherwise too much transfer slot is exposed at idle. This results in a dead spot as throttle open. The master tech series has videos (slide shows actually) and pamphlets on how the carburetor circuits work if you want to learn about that.
Anyway, fix your electrical problems. Check with CC on whether the cam should have been advanced on installation. Then work on the initial timing and fueling.

This one is as good as any.
Carburetion Fundamentals & Facts (Session 273) from the Master Technician's Service Conference