NOS- 02101BNOS Big Shot Wet Nitrous System for 4150 4-Barrel


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Fits Holley 4150 and Carter AFB (late), 190-300 HP, includes Black 10 lb Bottle

NOS is proud to now offer its popular Big Shot wet nitrous systems in black. These systems are adjustable from 190-300 horsepower and use a special fogging plate design that vastly improves nitrous flow, fuel atomization and mixture distribution. Our Big Shot plate utilizes a unique spray bar that is equipped with tiny orifices that are precisely located to efficiently dispense a powerful nitrous/gasoline mixture for unbelievable horsepower gains. Power output is adjustable from 190-300 horsepower simply by changing fuel and nitrous jets. This single stage system includes everything needed including 6AN feed line, 1/2 inch fogging aluminum plate, black 10 lb bottle, solenoids, hardware, and instructions to complete the installation.


  • Includes unique Fogging design aluminum plate to vastly improve nitrous flow, fuel atomization, and mixture distribution
  • Includes jetting for 190, 225, 275, & 300 horsepower
  • This wet kit provides exceptionally smooth power delivery
  • Bottle is made from 6061-T6 Aluminum
  • Includes 10 lb. black nitrous bottle with brackets
  • Includes mounting hardware and instructions


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