NHRA Accepted Products Table of Contents - NHRA.com

NHRA Accepted ProductsIX. FOR CLASSES LIMITED TO TWO (ONLY) NHRA-ACCEPTED 4-BARREL (NON-INLINE) OR THREE TWO BARRELAMERICAN AUTOMOTIVE PRODUCTION CARBURETORS WITH ANY INTERNAL MODIFICATIONS.Applicable Classes: A/SM, A/SMA, B/SM, B/SMA, D/SM, D/SMA, F/SM, F/SMA, H/SM, H/SMA, I/SM, I/SMAPart Primary Primary Secondary SecondaryManufacturer Number Throttle Bore Venturi Throttle Bore Venturi Applicable NotesAny carburetormanufacturerrepresented inthe NHRABlueprintBulletins; i.e.Holley, Carter,Rochester,Autolite, Ford,Straumberg,etc. isaccepted.King DeamonBarry GrantRSBarry Grant 1563010DRQuick Fuel SSR-850Quick Fuel SSR-8562Quick Fuel FX-7414Quick Fuel P-4512Braswell B-4825Braswell B-7390Anycarburetorsproduced byan acceptedmanufacturerplus thespecificcarburetorslisted below.For any accepted carburetor(s) any size throttle boresand venturis as produced are permitted. Throttle boremodifications prohibited, venturi modificationspermitted.1. Minimum Throttle shaft diameter at thinnest pointis .085". Minimum throttle plate thickness atthinnest point is .040".2. For all carburetors used in these classes throttlebore modifications are prohibited, any other internalmodifications are permitted except as listed in note1 above. External modifications are limited toremoval of the air horn, choke plate, shaft, andoperating mechanism. The original bodies, baseplates, float bowls, and metering blocks arerequired.3. Any of the OEM or aftermarket accepted 600,750, or 850 CFM carburetors listed in sections I, II,or III above may also be used in these classes. Forthese applications the throttle bore, venturi, throttleshaft and plate dimensions listed in sections I, II, orIII apply for these carburetors only.Page 122 1/14/2014