I had a shop once where I did some street rod work and EVERYTHING I bought for those cars that was supposed to just "bolt on", had to be tweaked, modified or sent back and I made the item myself.
That's happened with most everything that was supposed to bolt on to my Cuda. The only thing that was "right" out of the box was my AlterKtion. (Bill does a nice job.) I pretty much accepted this sort of thing once I knew the direction (modified) I wanted to take with my Cuda. (let me correct that....HIGHLY modified! lol)
Jim, I would imagine your next high points will be starting that puppy up for the first time and then again when you take it out for it's first shake down run. I restored a classic Mercedes Gullwing for a fellow in his early eighties. The car had been in pieces for 38 years. He started sobbing and shaking his head in disbelief that it was actually running again. It was an honor to be a part of his whole experience.
