95 gmc jimmy

1995-gmc-jimmy-2 3 shops have looked at it. I replace the spider injectors, fuel pump, fuel filter, fuel pressure regulator, spark plugs, wires, distributor rotor, MAP sensor, throttle position sensor. Ideals great push gas it acts like it starved for gas. 3Rd shop wants to put a more expensive fuel pump on it. Do you think this will help?