The first throttle cable in the 2S is just too limited and won't get to the linkage for that ITB’s. I'd a check out some outdated Toyotas on the wrecking lawn and found one particular that might healthy from a 1989 SV21 Camry. This layout eliminates the constraints and inefficiencies https://toyota4age36307.amoblog.com/the-best-side-of-4age-20v-itbs-61033791