I posted this latest info in the electrical section for some feedback but wanted to add the info here too.
In an effort to make sure the ignition system isn't contributing to my issue, I went to replace the last part that hadn't been updated. The coil. The current coil was a stock style coil that was probably 3 years old. I replaced it with an MSD Blaster SS #8207 and the car started backfiring through the carb as I increased RPM. (Nothing else changed.) Swapped back to the old coil. No backfire.
MSD Tech says the more intense spark is likely jumping inside the cap and an adjustable phasing rotor will help the backfire issue.
Could a weak spark or poorly phased rotor be contributing to my lean running issues?
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Thad
1958 Chieftain Safari (370,4 spd, 9 passenger) Daily Driver
1966 Bonneville Wagon (Factory 421,3x2,4spd, 9 passenger) On the road!!
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