I am having problems getting my 700 to shift right after converting to TPI. I am using a normal TPI throttle body and linkage with my stock 1985 TH700R-4 TV cable. If I adjust it per procedure (so that WOT clicks the adjuster), it shifts super mushy and early. If I move the adjuster tighter until it shifts the way it did with the carb, the TV bottoms out and I can't open the throttle past 80%. I have compared the geometries and both have a throttle radius of about 1.5" and a TV radius of about 1 1/8". In both cases, total stretch of the TV cable from idle to WOT is about 1.25". So my TPI must be making torque with smaller throttle movement than the Q-Jet. I don't know how else to explain this. Here's a drawing of the Q-Jet linkage and the TPI linkage So how do I fix it? I had two ideas: 1) Put a new attachment point on the throttle linkage with a smaller radius (closer to the throttle shaft) and adjust the cable tighter. 2) Put a stiff spring between the TV cable and the throttle, so that it opens normally until the TV is bottomed out. Then the spring stretches to let the throttle open all the way. But is there some difference between the TV valve in a truck valve body and a Camaro valve body? Should I find one of these and swap it out? I *should* check and see what rpm my WOT 1-2 shift occurs at so that I know the tranny is working the same as it did with the carb, but I have no reason to doubt that it does. Plus, it used to occur over 5000rpm (I have a Camaro governor in the tranny - I would always let up on the pedal to get a high load 1-2 shift) and this requires a high level of trust in my ECM tuning, which is still in progress.