Spent $400 on a fuel pressure gauge kit and it paid for itself in one weekend
My 1972 C10 was coughing on hills and I kept swapping filters for weeks. Borrowed a buddy's gauge setup, found the pump was only pushing 3 psi instead of 6. Bought the kit from Summit, fixed the line, and now the truck pulls like new. Anyone else found a cheap tool that solved a mystery real fast?