Not sure why I haven't any part throttle kickdown at any time. The car is now a 4bbl thermoquad and the kickdown has been moved back on the intake and modified to suit. So at idle, the kickdown lever is fully towards the firewall and seated against the stop at the trans. It is held forward via a spring, and moves freely with the throttle or by hand. The car will shift ok, but never gives a part throttle (or full throttle kickdown for that matter) ever. Not even if you floor it right after it has shifted to second gear and want it to drop back down to first gear. Perhaps I need some tuning done at the trans end? What can be done to raise the shifts points and get the kickdown back?