This tuning kit is composed of a selection of accelerator pump hardware components including pump diaphragms, pump nozzles, pump cams and related parts. Contained in a convenient plastic parts case, this kit has all that is required to properly tune and calibrate the accelerator pump circuit(s) for your street, drag or circle track car or tow vehicle. A handy parts guide is affixed to the inside case cover to assist in reordering components when necessary. 36-184 Kit Contents: Pump Discharge Nozzles- 2 of each size: 25,28,31,32,35,37,40,42,45,47,50,52 Pump Discharge Needle Valve: QTY of 6 Pump Check Valve: QTY of 6 30cc Pump Diaphragm- QTY of 6 50cc Pump Diaphragm- QTY of 6 Pump Discharge Nozzle Screw- QTY of 4 Pump Cam Lock Screw- QTY of 6 Pump Discharge Nozzle Gasket-QTY of 40 Pump Cam Assortment- 2 of Each Cam, QTY of 20