Quote:
Originally Posted by scott70
I currently run a dui small body I bought new probably 4 years ago. Ever since I put it in it won't hold timing. I set my timing with a timing gun that has a dial for total. You can tighten the clamp all you want but for some reason it can creep advance or retard after you run it hard a few times. Just did it again,,,they set total at 32 on the dyno...once in the car I confirmed 32 total with my gun. Git a few miles on it now and it crept back to 30. I let it cool off over night and checked it again this morning...30 total. Now I noticed one of the wires that goes from the external module into the bottom of the dist has some burn spots on the insulation. The only way I can see that happening is if the wire leaned on the module which might of been hot. Or it got hot from the inside. Look at the yellow wire,,there's like 3 burn spots.I'm just kinda tired of it.
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Is your distributor/coil hooked up to a 12volt source and not the ballast wire? I could be wrong but most aftermarket HEI distributors should be hooked to a keyed 12 volt ignition wire and not the OE ballast wire that came with a points vehicle.