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80 cj7 304 v8 with GM 4 pin hei conversion question

80 cj7 304 v8 with GM 4 pin hei conversion question

suburban99

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Location
Mission City, British Columbia, Canada
Vehicle(s)
1980 CJ7 304 V8
2011 Silverado 4x4
2004.5 Dodge Cummins Diesel
1997 Porsche Boxster
I removed the duraspark module and replaced it with a GM 4pin hei module.
Jeep starts and runs better until it gets warmed up then it seems to lack power.
I am running an MSD distributor and a MSD blaster coil and am wondering if I need a ballast resistor to protect the coil...?
 
The ballast resistor is not needed with the blaster coil. (The ignition module doesn't matter)
 
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