I have been talking for months about what I am going to do, all the while driving to work everyday with the TFI distributor and locked timing. My fuel mileage is not that great, and with the price of gas if I could get a little better it would pay for itself. Right now I am getting around 16-17mpg. But it runs so good, you can't hardly tell it's running at idle it's so smooth and it starts right now in the cold weather.
I just went out and tore down the cardone rebuild with the worn out bushing. You can't find parts for these things. It was a little tough getting the bushing out, but I measured it afterward, and verified it is the same bushing that Ford used in the small block Ford distributors. The mustang places are selling these bushings that have been reproduced. The Ford original part number is B8QH-12120-A. These dimensions are approximate, but the bushing is about .467 ID, .688 OD and approx 1.715 long.
I start looking at the rest of my "rebuilt" Cardone distributor. I hope I can polish the shaft, the holes in the weights are wore out, the pickup coil is original. That's all I got to look at tonight. I can't find any of these parts. But I did find something, I am really going to stick my neck out here. I found a brand new duraspark II distributor for a 300 six. Probably china made, it doesn't say. But the price is right, on sale for $39.00. I am hoping I can at least use some of the weights and springs inside it, and possibly even the bushing, not sure. Theoretically I will use my old cologne housing, shaft and gear, and use the new plate, springs, weights, pickup, etc. And bushing if it turns out to be the same size.