[Jamo]

The MSD caps are crap. The POS graphite balls crumble at times, fall out other times and wear out quickly most of the time. I've done all the "fixes" (the grounding, the contact, the grease, double checking the box, the coil, etc.)...they are still crap. Making sure of the contact seemed to provide the best fix.

That being said...they are still crap. There's really no reason why they couldn't be made out of just metal. As Pat says, the Chevy caps (BB I'm pretty sure) work the best, but require changing over the wire connectors. I still use the POS MSD crap caps, but I change it out every 1,000 miles and always carry an extra one. Many folks have had the problem...seem to be different runs. You'll get a good one, and then the next one crumbles apart.

Not one of MSD's better ideas...and it makes it worse when they suggest all kinds of fixes under the hood.

Again, to summarize...they are crap.