I recently bought a 1970 f250 w/ a 302. It ran great when I first bought it 3 weeks ago, but now it runs like crap. At full throtle it runs fine but when I lightly depress the pedal the truck lurches and sometimes backfires and shoots flames out the tailpipe. I can almost hear it just spitting fuel instead of a constant spray. Is it time for a new carb, or a simple fix?:confused:

Probably be best to start with the basics first. Vacuum lines, state-of-tune (plugs, wires, cap, points if it has them) if it has an EGR valve.. You know, start with the easiest and cheapest first.

what kind of a carb does it have? If it's the two barrel that thing is ridiculously easy to rebuild. I think the kit is about 10 bucks or so

well... we just rebuilt the carb and timed it. still runs the same:confused: checked vacuum lines, pcv valve. it has new cap, rotor, points, plugs and wires

electronic ignition or points? points may be worn or gapped incorrectly

sounds like the motronic blues....




damn thing must have points. swap up or get used to tune ups.