I have been fighting some ignition problems and I have replaced the Ignition Control Module 3 different times in less than a month. I finally decided to replace the distributor. I am Very Happy to say that fixed it. I have more power, the exhaust sounds a LOT better and it is no longer missing and stumbling under acceleration. I had to go see Dear Old Dad to borrow his timing light and I rather enjoyed using that old dinosaur.
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The contacts in the AC Delco cap are significantly thicker than the cap that came with the new distributor so I went with that cap.
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This Chrome Dinosaur still works!
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Since my '87 is TBI you have to unplug a Special Super Secret Wire before setting the timing. On my Truck it is located next to the steering column, below the brake booster.
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