The ballast resistor is used to raise the voltage while cranking the engine, and lowering it while running,,,,,,,,,,,my recomendations would be to convert the ign. system to a later modes ecu unit, this can be easily done with used part from the junk yard, or the purchase of new from your local parts store ************************************** See what's free at http://www.aol.com. [Non-text portions of this message have been removed] ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.