Chevrolet Camaro 1967-2002 - Kick down cable help

My first post :newbie: but I'm buying a 88 iroc z (with a sunroof :( ) but I need to adjust the kickdown cable so that it shifts properly. The kick down cable is new by the way any help would be greatly appreciated

buy a good service manual for it, it will come in handy, get over on thirdgen.org(lots of good tech info), its an easy adjustment.