We have a 1987 Ford 460 automatic in a Motorhome. It runs OK until you hit 55 mph then it starts cutting out and back firing. It will not go over 55 mph (up hill or down). So far we have put in a new carburetor, changed the fuel filter, rotor, distributor cap, plugs, wires and check the timing. Any idea on what else our problem could be?
have the same problem?
Monday, March 10th, 2014 AT 12:19 PM