Re: 1972 Fiberform Throttle Shifter Knowledge.
Just saw your post, so you've probably got your question answered. If not, the center button pulls out so that you use the throttle only without engaging the shift. after you're back to idle, you can push the button in and it engages the shift mechanism. Now when you push to handle forward, you put it in forward and give it gas at the same time...when you pull it back, you put in reverse and give it throttle.