Need help tuning Quickfuel carb

jbc426 said

Tell that to the Mopar engineers who went to the trouble of issuing a TSB for the misfire problems on Magnum motors, big guy.

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What does the magnum motor have that a LA doesn't? Cheaper Mopar wires sold at the time of the install? I have been building motors and tuning them for a very very long time. Never did I see wires act different because they knew they were on a certain style motor.

Higher voltage coils cause wires to fail. If you can't afford good wires stay with a factory coil. All motors have non-conductive wire looms to stop them from rubbing through and allow the use of cheap wires. It is kind of hard to keep them from crossing paths at the distibutor with a firing order of 18436572. The same on all mopar V-8's. LA's and Magnums. The TSB for the misfire problem was for the wires running to the distributor stuffed under the firewall of the Rams. They had a hotter coil and cheap wires . When wet the wires would cross feed if to close. Been there.