When we bought our '89 Dodge, we found out during the long drive home that it had a top speed of about 75 mph. The horsepower was there, just not the rpms. When we put the truck on the dyno, our ...

Lift Pump Upgrade Once you start pushing for more fuel with bigger injectors, your stock lift pump will undoubtedly tap out soon after. It just wasn't built to keep up with a hungry, modified Cummins, ...