Call me Funk
Join Date: Dec 2001
Location: Powder Springs, GA
Is the rod an adjustable type? I had the same problem, the pedal would only open the throttle about 80%.
Two things were causing the problem.
The motor was tilted to passenger side by about an inch due to mis-matched motor mounts. Once the correct mounts were installed I had more room between the valve cover and linkage that comes from the pedal.
The second piece of the problem was the rod was not adjusted properly.
I would look into an adjustable rod.