The Master Flo‑Check Pro kit from Nitrous Express includes a 6‑inch certified, high‑accuracy gauge in a molded case to set flowing fuel pressure without running fuel into the engine. The large gauge reads pressure in 1/8 lb increments, allowing precise adjustment during setup and diagnostic work, and simplifies achieving correct flowing pressure for fuel system tuning.
Nitrous Express Master Flo-Check Pro (6 Certified Gauge & Molded Case)