Ethanol and Mopar Pumps....Trouble ?

Ignition is usually easy and cheap to upgrade. If SB or RB, there is a ~$45 new distributor with integrated HEI module available (skipwhite on ebay), but would need later Magnum type plug wires (cheap at JY). Also, Pertronix, Chrysler electronic, Crane XR700, other HEI designs, ...