The Nitrous Express Master Flo-Check system lets you set flowing fuel pressure without running fuel into the engine and includes a 2" fuel pressure gauge that reads in quarter-pound increments. It provides a controlled way to establish flowing fuel pressure for tuning or setup tasks, giving a small, accurate gauge and plumbing to check and adjust fuel pressure without full engine operation.
Nitrous Express Master Flo-Check (Checks Flowing Fuel Pressures Gauge Incl)