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Thinking about changing over to petronics distributor. Do I still need a ballast resistor? Likes? Dislikes?



I have their distributor and rev limiter (bought it before the III version came out) on my 440 in the 66 Coronet. I checked the advance curve against Eburgs recommended curve in the Mopar Action tech section and it was right on, didn't need to change a thing. My fuel economy went up a bit, and a tad more seat of the pants dyno HP increase.

You don't need a ballast resistor if you use the right coil with the correct resistance/impedance. I used their 60KV Ecore coil with a bracket I fabricated to use the stock coil bolt holes.

I did have to clearance the cylinder head quite a bit

Coil is in front of the air filter, rev limiter is next to the voltage regulator on the fire wall.