Does anyone out there have any idea whats going on with my 54 GMC? I have a 248 engine, completely rebuilt head, new gas tank, fuel lines, fuel pump and rebuilt carb. Truck ran great for days now it's giving me fits. Starts up idels, runs smooth and strong for 5 mins and then just dies. Then it won't start at all..it's like the key is off,the engine tries to kick over but won't? Anybody...ideas??
Thanks
