700R4 Kickdown Lever Attaches To Throttle Lever Of Holley Model 4150/4160 Carburettors. Designed For Vehicles With Gm 700R4 Automatic Overdrive Transmissions. Includes Bolts And Instructions. Installation Notes - The 20-121 Should Be Used In Conjunction With Transmission Kickdown / Throttle Cable Brackets Such As Holley Pn 20-95 (Steel) Or The Holley Pn 20-112 And 20-119 (Aluminium) Brackets. Note- The 20-121 Is Not Designed For Use With Some Early Model Holley Carbs - Holley Dominator - Chrysler Or Ford Specific Throttle Levers. Features- Corrects Geometry For Throttle Valve Cables - Provides Proper Transmission Fluid Pressure