NOS Dual Stage Big Shot Nitrous System for Holley 4 bbl

Image may vary slightly from actual

Overview

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.

Two Cheater solenoids control the first stage while a Super Pro Shot nitrous solenoid and a high-output Cheater fuel solenoid control the second stage. A 10 lb. nitrous bottle is standard. Optionally available are a wide variety of NOS electronic controllers. These can be employed, for example, to activate the second stage, while a NOS Progressive Nitrous Controller can be used to actually dictate the amount of nitrous (in percentages of total power potential) and the timing.

Actual performance gains will vary depending on the engine’s condition, configuration and jetting of nitrous system. Optional power jets are available for a variety of horsepower settings.

Features

• More Gradual Power Application
• 2 Sets Nitrous/Fuel Solenoids
• Includes 2 Cheater Solenoids
• Includes SuperProShot Nitrous Solenoid

Specs