NOS Nitrous Micro Switch - Holley 4500 Carburetors 93521 Fuel filter and mounting hardware

Fuel filter and mounting hardware included

Our ALL-NEW Extreme-Flow EFI Regulator now comes with -12 ports

Works Great With Sniper EFI Intake Manifolds

also known as Hypercoils

NOS Nitrous Micro Switch - Holley 4500 Carburetors 93521 Fuel filter and mounting hardwareNOS Micro Switch Bracket 16514NOS Billet Dominator 4500 Micro Switch Bracket Product Description: Nitrous Micro Switch Bracket Included Holley 4500 Carburetors Kit The use of nitrous oxide as a performance enhancement has been used since World War II. Allied aircraft used it for emergency boosts in airspeed and altitude capabilities. By the end of World War II, jet propulsion had been invented and the United States' government was losing interest in