Y-BLOCK B&M Shift Improver Kits Part 78722 is configured for

Part 78722 is configured for its specific application with attention to fitment requirements

This gauge is a favorite among engine builders and track-day enthusiasts who push their equipment to the limit

The three external bypass tubes can be independently adjusted — two for compression zones and one for rebound

Sold as a complete set with sleeves and washers

We stock nitrous components and fuel system upgrades for serious power adders

Y-BLOCK B&M Shift Improver Kits Part 78722 is configured forThe MagnaFuel Y Block is a precision machined fuel distribution block that splits a single fuel feed line into two separate outlets, enabling dual carburetor, dual regulator, or dual fuel rail fuel delivery systems. It is an essential component for high horsepower engines requiring two separate fuel pressure regulators or for tunnel ram, dual quad, and cross ram intake manifolds. The Y Block is equally suited for naturally aspirated, nitrous, and