Could BOTH my horns be bad?
@Swinger 340 - did that and still nada - removed the powedercoating with a Dremel tool(brush) see next post.
****SOLVED****
First; THANK YOU to everyone that took time to help diagnose this issue. Been away for a few days for baseball and wanted to report back.
While working with these horns, accidently dropped one on the garage floor and when I picked it up, there was a chunk of crud on the floor. Shook the horn and sure enough it had a bunch of media that had hardened from when it was blasted prior to painting. Same with the second horn when I gave it a whack with a soft mallet. Even after that, still no "honk" after blowing compressed air in it and through the adjuster screw hole and bolting up with the cleaned up mounting brackets.
Lastly, borrowed a set of working Sparton horns from Mopar buddy and that did the trick. Soon as they were bolted up, they worked flawlessly. After that bought new set of Sparton horns and bolted those up and same thing, working flawlessly! BUT, after getting both sets of horns bolted up, came to realize that one of the original horns was not working to start. It was nowhere as loud as it is now with working horns. So, I was only working with one working horn to start and then that one gave up the ghost. ** We did try jumping the old horns once again after the media was discovered inside them and they just will not work.
Thanks again for all the good advice and diagnosing techniques, it was all very much appreciated!! :)