You sir have a good ear. Got the belts back on and unplugged the top plug on the IP green wire. The solenoid that's attached to the throttle cable arm and it runs significantly better. I have one from the old motor. How do I test if this one is good? Also on the chance the other one is also bad, I can go with out so long as the truck starts correct?Check your air cleaner wing nuts for tightness. I had odd/loud/irritating noise that I ultimately traced to a loose air cleaner cover.
Also, it sounds like your cold advance switch may not be working and is stuck on. I can hear some hammering on the cylinders as your driving it. Does your truck go into high idle when first starting it then back down after it warms up? If not your cold advance could be your issue.