NOS Nitrous Micro Switch - Holley 4150 Carburetors NG21 LS6 and LS7 engines using

LS6 and LS7 engines using coils with a standard LS3 bolt spacing of 72mm

Ten-piece axle spacer kit includes two 3/8"

A C327 coil-over kit will allow mounting of a 5 i

1/4-3/8 in Grip Range

a larger hole will "shoot" the fuel at a faster rate

NOS Nitrous Micro Switch - Holley 4150 Carburetors NG21 LS6 and LS7 engines usingNOS Micro Switch Bracket 16512NOS Billet Holley 4150 Micro Switch Bracket Product Description: Nitrous Micro Switch Bracket Included Holley 4150 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