I bought a set of points based on the behavior. I got my head in there and the installed points look fine. Ran a points file through the gap and it slipped easily with very little bite so there's no pitting. Next step with the behavior it's exhibiting --- crawl under the bus, push the heater tube out of the way, look at the fuel filter. I suppose the 1/8" of crap sitting in the bottom of it might have something to do with the stumble-and-die problem. <sigh> It's in a spot that I need to get my good jack from the house to raise the bus and change the filter. The reason I suspected I might need a resistor on the coil is because I run the full 14.x VDC generator voltage to my coil through a relay and about 3 feet of new wire straight from the battery + post. It's not getting only whatever volts happen to make it back through 30 feet of 40 year old wire and a keyswitch. G2 On Sun, 30 Jan 2011 15:22:43 -0600 "chuck" <sukchew@xxxxxxxxxxxxxx> wrote: > http://www.historicwinton.org/Ignition%20Condensors.htm This may > help. oleblue