NOS/Nitrous Oxide System - Adjustable Pressure Switch, 50 PSI Adjustable Pressure, Normally Open Spring Unload Collar - Natural

Spring Unload Collar - Natural - Longacre Bump Stop Spring Tester - Each

Cylinder Head Stud Kit - Hex Nuts - Chromoly - Black Oxide - Undercut - Small Block Chevy - Kit

170 in Long - Hex Nuts - Stainless - Polished - Set of 8

5 in ID - 16 in Length - 110 lb/in Spring Rate - Steel - Black Powder Coat - Each

Fan Shroud - 22 in Wide - 19 in Tall - 3 in Deep - Cut to Fit - Plastic - Black - Universal - Kit

NOS/Nitrous Oxide System - Adjustable Pressure Switch, 50 PSI Adjustable Pressure, Normally Open Spring Unload Collar - Natural50 PSI Adjustable Pressure Switch (Normally Open) You don't want to be blasting nitrous into the engine if fuel pressure is below what is required to supply the required extra fuel.