360 runs great one day and then poorly the next

The gremlin is still there. Fuel system has been gone through, tank has no rust in it, clean fresh non-ethanol fuel added and pressure at carb is approx 7psi (mechanical). Haven't swapped carb out yet. TQ was just overhauled by Carburetor USA, over the winter.

Coil, P/U gap is .008, cap and rotor swapped with known good. Electronic module was swapped with know good. Still scratching the head. New harness didn't change anything.