What do you mean by both ends of the arm? I have removed the tapered part of the foot, but not understanding what to remove on the other side? Can full rack travel be had by just taking the right amount of material off the foot or would one have to also do what you mentined on the other side and the washers flip thing? I will find it fun and interesting tuning the afc for best times this sat. night but want to go with the right mods already made so that the best tuning can be had. If i decide to remove the foot for a run of 2 just for the sake of learning and being curious i wouldnt consider it lazy, just wanting to learn what works and what dont, and i can def. imagine that will totally dep. on all the other tune up perameters in the engine. I thinking most all of the afc tuning will be seen easily in the 60'. I'm hoping that with right at 33" of tire on the ground that traction wont be my killer so i can leave with a little more boost and help with the onsight of two much fuel if i try a pass with no arm in the housing? Well see and i'll let you Sun. Thanks Ryan