Okay, took out the distributor, I had Wayne the mechanic look at it. There is a very tiny bit of play in the shaft, he's seen them worse, he said. The insides, underneath are very clean, points are very good too. I'm thinking to look elsewhere for a problem.
Valves have been set a year ago or so, by truckernix. I can't check the fuel pressure without a tester, but the fuel pump is relatively new. Just checked the accelerator pump too, working good. Jerry, I haven't checked the wires. I put them in new and have likely 6000-8000 miles on them since. If the truck cruises fine at say, 3000 rpm, how could they fail by accelerating?
I also double checked all the spark plugs. I gapped them before putting them back in. I didn't need to alter them, they are all at .030 Still stumped, though...
