Addendum 2-17-2026
HMS Enforcer (Harrington Spec)
HMS Enforcer engine will use only the Holley 500 HP Series part #080583-1 or the Holley 500CFM Ultra HP and XP 2BBL aluminum body carburetor part numbers 4412HB, 4412HBX, 4412BK and 4412BKX.Holley 2 barrel 500 cfm Carburetor with the approved Orange County Plate to be ran as manufactured and purchased from Hickory Motor Speedway or Orange County. Each plate will be numbered and logged.
