90 dodge ram 350, 360 ci, 2wd, auto.runs fine when cold. after 20 miles or so starts to sputter on acceleration. after 30 or so, acts as if stalling out when throttle applied. Will get up to speed with small throttle unless on hill. Still idles fine, revs up fine in park.
Is NOT over heating, oil pressure is fine, charging fine.
Coil, cap and rotor, fuel filter have been replaced to try to solve this. Voltage regulator has been bypassed to old style from original internal computer, if that could be it for some reason. Temp, sensors seem to work.