Please help!!!!!! I HAVE A 1979 F250 SUPERCAB 4X4. 351W, THIS BEAST ONLY HAS 38,000 ORIGINAL MILES ON IT. ANYWAY, THE PROBLEM IS THIS. WHENEVER I'M DRIVING, IF I GO UPHILL OR ON ANY INCLINE, THE MOTOR STARTS BOGGING DOWN, HESITATES, AND IF I DON'T FLOOR IT, IT WILL DIE. I HAVE REPLACED ALL THE FUEL LINES, NEW FUEL FILTER, NEW TANK, SENDING UNIT, NEW PLUGS, WIRES, CLEANED OUT THE CARB, NEW FUEL PUMP. I'M RUNNING SHORT ON PATIENTS WITH THIS BEAST. ANY HELP IS GREATLY APPRECIATED.

 

Clogged catlytic converters.

 

definately sounds exhaust related

 

Cleaned out carb, or rebuilt? Although I'm no carb expert, I'd check the float.

 

i just ordered an edelbrock carb (600cfm). I'm hoping this does the trick. the motorcraft carb on it now is original and the truck sat in storage for awile. Really hoping this works. $420.00 dollars later. Think it could just be the float and I may not need a new carb?

 

The only way to find out is to disassemble the carb. I've had the plugged cat before, and the truck did not move on the flat either, very sluggish.

 

Anybody out there know where I can get a billet grille for a 1979 f 250 4x4 supercab?

 

I would say its the carb.

 

Try LMCtruck

Adrianspeeder

 

Ordered it thru LMC. Thanks!!!!