Why do I keep cooking ignition coils?

Tommywalton

Petty Officer 2nd Class
Joined
Apr 23, 2010
Messages
170
I have an 88 omc cobra 5.7 ive fried 2 coils in less than 20 hours. This is what i know. I have a prestolite dizzy with a pertronix kit installed. I did the diode fix to correct est issue. Factory coil died before est fix. The accel died after. Both were 12v coils. I get 12v at coil while running through factory alt resistor wire. What gives? Anyone had this issue?
 
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