Thread: dui ignition
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Old 12-08-2003, 02:13 PM
scottj scottj is offline
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Join Date: Oct 2000
Location: Crystal Lake, IL
Cobra Make, Engine: Everett-Morrison, 434 cid
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V-8,

I have seen some stock Chevy HEI modules fail and it was always attributed to heat. Everyone running HEI always kept a spare module in his or her toolbox. Usually any problem with the module was corrected when it was replaced. I never had a problem with misfire or complete failure with the DUI though. I don’t think it would be accurate to say this type of unit misfires when it is hot.

I run a Pro-Billets, 6AL's, and Blaster 2's in my cars now. I have had MSD boxes and MSD coils go bad. Now days, everyone I race with carries a spare MSD ignition in their trailer or they run two and switch to the spare if one fails.

Scott
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