Tighten the 3 -6AN Fittings, screw on the fuel pressure regulator, bolt on your existing -6AN Fuel lines and your done.

6AN Inlet / 6AN Outlet  (25-90 PSI Operating PSI) 

• Includes (3) -6AN fittings and (1) 71501 EFI Gauge
  

Regulator Features

• Two -6AN inlet ports and one -6AN return port
• Gasoline, diesel, methanol, and ethanol fuel compatible
• Billet Aluminum with anodize per military MIL-A-8625, Type II
• Fine thread pitch for precise pressure adjustment
• Versatile mounting bracket and stainless steel hardware
• 1/8” NPT gauge port with plug for external pressure gauge
• 1/8” NPT pressure reference port with barbed fitting
• Backed by a limited lifetime warranty