Cable Kick Down: 89-92 Camaro Firebird TA V8 Auto Tuned Port Injection (TPI)GM original parts while discontinued stock available.. this is the Auto Trans kickdown cable for the 1989 92 Firebird and Camaro series with T700 4 speed automatic. Tuned Port Injection cars only use this cable.. not TBI (TBI is easily identified by having an air cleaner on a carby.. not injection rails etc) How to Adjust the cable: There should be an access hole on a (most likely) black bracket holding the cable. & This is how you adjust your kick