1st off I hear you about Schumacher I to have been waiting for their products since April..
You still have to source conversion mounts but pre 73 is a lot easier
I have a 73 swinger I called summit racing to verify everything would work with a magnum engine so giving a big block is no problem
Everything from your stock setup should bolt right up to the qa1
I myself might be buying one of these for my ride depending on how it handles with the original K member I have its bent up a little bit
