I had a "ready to run" MSD distributor in a '69 that crapped out in a similar fashion. Replaced it with a stock points style distributor and all is well. I need to send this one back to MSD.
I have one. I don't really care how clean it is, it's not worth that kind of money with those miles. $3500 would be much more realistic. Take a look on ebay and see how much these are selling for. It's much less than you would expect.
My garage has a low ceiling, but I'd really like a lift.
KwikLift drive on lifts, 2 & 4 post lifts, home, commercial, car, truck, forklift maintenance lifts
When cold, 1400 rpms = 60 - 65 mph
When warm, 1400 rpms = 55 mph
I can tell by the way the engine reacts that my tachometer is not off. I checked the odo against the mileage markers on the highway and it appears to be correct.
Why does my speedometer run about %15 fast first thing in the morning. The odometer seems to still be correct. After the car warms up, the speedometer goes back to normal.