I had the same problem on my Alpha trainer, clevis hitting engine bolts. I changed the linkage to a "ball and socket" on the throttle arm. It is not the snap on type, but the spring type that you have to hold back, slide on the ball, and release it and it locks. Works good and brings the pusrod out enough to clear the bolts. I think I spent 2.50 on the kit. Also got rid of the binding problem I had. The T arm was not in line with the pushrod exit at the firewall. Lined it up perfectly. I am planning on changing it to a flexible cable though in the near future!!