I seem to have a chirping noise coming from my distributor. I just noticed it after getting the exhaust installed on my 54 (Its finally quiet enough to hear the chirp). I'm running a 241 hemi with a new mancini small block distributor in it. When I checked it out the center pin in the cap was completely gone. I replaced the cap and rotor with one I had around, and it is still chirping. I suspect I'm going to have to pull the unit and check it out. I do have a spare dist around but its disappointing as this was a brand new out of the box unit. Unfortunately I bought the unit a few years ago in the process of building this car, but it took this long to get it on the road, and quiet enough to hear the problem.

Anyone else ever have this problem with a distributor?