1990 Ford f350

2. Current odometer reading about 98,000 (approx)
3. Stick Shift or Automatic Transmission (stick)
4. Strange sounds or smells (if any)
5. Fluid leaks (if any)
6. Past repair history (if applicable)

pickup will surge at idle, jerks like it running out of fuel and acts and surges in low gear 35to 40 lbs. Fuel pressure with the key off 35 lbs. With key on have changed fuel filter and spark plug wires