NMCA rules

CARBURETOR
(NSS CLASSES): All entries in the eliminator must be carbureted as outlined below. Positioning of carburetors from factory mounting not a tech item (carburetors may be positioned facing forwards, backwards, or side mounted). Choke horn, choke plate, choke shaft, choke linkage, and choke mechanism may be removed. Carburetors are restricted to the following manufactures: Holley, Edelbrock, Carter, Rochester, Demon, Quick Fuel Technologies. Vehicles in this class permitted the use of carburetors listed for NSS, or Holley, Quick Fuel or Holley based carburetor 4150 style with a maximum 1.750 throttle blade. (NO Dominators).
Carburetor must have commercially available cast main body. Billet Base Plate and metering blocks are permitted. All NSS combinations are permitted duel four carburetor setup.
FUEL