METCO 1999-2004 Mustang - Ford Fuel Block Kit without Gauge METCO Fuel Block Kit This convenient billet adapter mounts directly to the factory (or aftermarket equivalent) fuel rail, sandwiched between the rail and the OEM fuel pressure sensor. The fuel block seals with OEM-style O-rings, so no gaskets or sealants are required. The installation is a quick and simple affair. The block has one 1/8" NPT port on each side, providing a convenient tap for a fuel pressure gauge, a tap for a nitrous system, or both. A stainless steel pipe plug (not shown) is included to plug one port if the port is unused. The kit includes the black-anodized CNC-machined fuel block, O-rings, one stainless steel 1/8" pipe plug, and mounting hardware. This product is an original Metco Motorsports design that has been copied a number of times, but none of the copies match the quality and precision fit of the original. Note: This fuel block is available with a direct mount 1.5" carbon fiber-faced pressure gauge under Metco Motorsports PN MFP0006.