Had my throttle body modded in the fall along with new bushings, the TB works OK being flowed at 785cfm with no boring. Problem is the throttle is sticky just off idle and I have to lube it once in awhile- this really bugs me. Any body here machined in a pair of sealed bearings for the shafts of a TPI/LT1 TB?

 

sticks with linkage disconnected? my old one did that since the 2.00 butterfly was not centered correctly...i would Q why they bore but deliver with bad shaft to bushing?