Carb choice for a mutt motor.

I'm leaning towards timing as well. The PO gifted some upgrades after the sale. Mopar electronic distributor, new in box. Along with a disc brake kit for the front. That's going to be another box of surprises, I'm sure.
I'm having fun with this, but it has a lot that needs to be "undone". Only the finest hillbilly engineering was applied to some things from all I can see.