So, what you are saying is... Procomp copied a s#itty MSD and made it work and look like an MSD and got sued in court. lol
Only if MSD copied Procomp. MSD is a terrible product.

Well that's sad to hear. I sent one in 3 or 4 years ago and they fixed it. I figured all they really wanted was the case and is why any repair was the same price. The guts probably cost 3 bucks.

I don't know the latest skinny, but the last I knew, Daytona Censor was a good ignition box product.

I need to resurrect this old thread. I'm getting the boat ready for the summer (I know it's late but been busy with stuff) I removed the distributor cap like I do every year and checked inside. Found the normal (for MSD) rust inside and build-up inside the cap on the pick-up points. Mine doesn't look anyway near as bad as the ones shown here. The distributor is about 15 years old. I replace the cap and rotor every other year and clean it in between. I called the MSD tech line and specifically told the gentleman on the other end this was a marine application. His "fix" was to drill (2) holes in the cap 180* apart just below the rotor so the reluctor wheel would act like a fan! This would move the air around inside and prevent the ionization. I can't see doing this in the bilge of a boat!!!
If I use one of the spray on rust inhibitors mentioned hear, can you also spray inside the cap to help prevent that build-up also?
By the way, I switched from Merc Tbolt 4 set-up because the brass bushing inside the distributor shaft would wear out every couple of years and I would have to replace the whole thing.
Thanks,

Funny this should come up now...i was cleaning out my garage over the weekend and have like 4 T-bolt distributors siting around....i was looking at one of them and noticed two holes about 1/8" in size, one on each side of the shaft under the reluctor wheel! I thought to myself this cant be factory but the others had it as well.....not sure how old these distributors are though....

I just looked at an old Merc cap I had and found it has a 90* brass fitting on the side that would vent air from inside the cap? Maybe MSD is correct.

Wally, could the holes you're talking about be for oiling?

The holes i saw were in the base of the distributor itself..under the rotor....not the cap...i know what you are talking about the brass vent on the side...all the caps i had had those installed....i will have to look closer at the distributors tonight and take some pics..

Only my GM looked worse...