I cant imagine you needing to adjust the TPS. If the hotfoot came from the factory, Id also bet on it being installed correctly and adjusted. But just have someone stand on the throttle while you go look at the throttle linkage. You can see how the stop works on the side of the motor. Does the throttle hit the stop? If not, adjust the hotfoot stop by screwing it in to lett the pedal go further down. You just dont want to exert a ton of pressure on the throttle linkage by going too far in the hotfoot adjustment. You should be able to remove the silencer and see the throttle butterfly. When you stand on the throttle, does it turn edge-wise so that you just see the edge, or is it occluding the throttle bore somewhat by not quite going far enough (or too far, I have seen some that would go past the level point which is also no good and can confuse the ECU as well with an odd TPS reading.) You want the linkage on the power head to hit the stop as the butterfly fully opens, then you want to just lightly hit that stop when you press the hotfoot pedal all the way against the pedal stop. Thats as good as you can set it. If you want a more careful test, put a piece of paper between the throttle linkage and stop. Stand on the hotfoot and pull the paper out. It should come out without tearing or requiring a lot of effort. If it doesnt, back the foot pedal stop out a half turn, lock it down, and try again…2008 Pantera Classic2014 Mercury Pro XS 200