Rookie mechanic: trouble shooting advice requested

Marcohotrod said

he has a MSD coil and a moparperf chrome ignition box-no problem. what is the compression ratio and spark plug number? try a hot wire to coil as was suggested. moparperf chrome box overheats at extended use below 3000 rpm. check resistance of ballast resister

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Thanks- you got it. MSD coil, Mopar ignition...sorry for the confusion.

Interesting info about the chrome box...if this is true, you may be onto something. My car with the 2.73 final drive (until I have the cash for a proper 8.75" with 4.10s) means that this thing is running below 3k all the time! Granted, I haven't put that many miles on it....but that certainly could be a problem.

Not sure what plug number that I'm running but I will take a look. Compression ratio is stock for a Magnum...and pretty low- 8.5:1?