get a 10" 3000+ stall converter
Recurve the distributor for 24-26deg base inital at idle and 34-36deg at max mech advance. ( 10deg advance curve)
Now that you have the correct timing curve reset the carb idle mix screws
for best idle. about 800rpm.
reinstall the stock jetting and rods but swap the metering rod step spring for a 4" rated
The bog and spark plug fouling will be gone.
Fuel pump Carter electric #4070 5psi no regulator is required.