I Give Up!! Not enough Throttle Travel

:angry7:

O.k., here is my dilemma. My 68 Cuda originally came with a 318 2 BBL. I now have a 408 w/single plane M1 and 950 QF. I have found that I have NEVER achieved full throttle, maybe 1/2 to 3/4. I cannot, even with various different accelerator cables and brackets and cannot get the dam thing to achieve enough travel to fully engage the 4 BBL. Can someone PLEASE give me some pics and suggestions? I had to walk away cause I'm starting to pull what little hair I have on my head out. :angry7: