Fits Holley 4150 and Carter AFB (late), 200-500 HP, includes Black 10 lb Bottle
- Includes 4150-flange 1" thick dual stage black aluminum plate with 4 spray bars
- Offers steady and precise nitrous flow, fuel atomization, and mixture distribution
- Includes jetting for 200, 250, 300, 370, 420 & 500 horsepower
- Includes 2 Cheater Fuel and 2 Cheater Nitrous solenoids
- Bottle is made from 6061-T6 Aluminum
- Includes 10 lb. black nitrous bottle with brackets
- Includes mounting hardware and instructions
To supply the proper amount of fuel to the carburetor and the Big Shot System, a fuel pump must be used that is designed to operate between 4.5 and 7 psi, with a flow rate of 0.1 gallons per horsepower at 6 psi. For example, an engine that produces 350 horsepower when the Big Shot System is activated will require a fuel pump that flows at least 35 gallons per hour at 6 psi.
![NOS PRO 2 Stage Nitrous Kit, Black [200-500 HP] (Holley 4150 & Carter AFB)](images/NITROUS_OXIDE_SYSTEMS/02301BNOS.jpg "NOS PRO 2 Stage Nitrous Kit, Black [200-500 HP] (Holley 4150 & Carter AFB)")
