OP - How far would you have to drive (or tow?) to Sterling VA from where you are in MD to see if this one runs better / worse / no differently? Oh, look... holes in the throttle plates.
This isn't even a sales pitch, although I do have it listed. If mine runs better than yours, then my tune & setup could help you figure out what direction to go w/ yours.
Besides, I think I still owe you a favor for the Hurst line-lock switch you sent me. - Brad