Ive got a 88 chevy and the throttle is hard as heck to push since I put on a spacer its got even worse. if i unclip the cable from the TB and move it in and out it works fine for a couple days then goes back to hecka hard to push. the cable slides in and out easy to anybody have this problem

It sounds like something is making the butterfly flaps to bind. Make sure all the bolts and nuts on the rod are thigh. Also try to lubricated it with oil, not WD40, oil last longer. don't know what to tell you.