4...ROTOR PHASING. When doing this conversion, it is IMPORTANT to get the distributor pickup wires in the correct polarity, as it offsets the spark timing in relation to the contacts in the cap/ rotor. Google it
Betcha this is it.:D
It would only take a minute to swap the distributor pickup wires and see.
Good spark at the coil and not at the plugs is a dead giveaway.
