4000 rpm's at 60, no 3rd?

Cool, you'll be putting along with something like I did with my 2bbl linkage, fool it into working OK till I could find what I needed. I think the setup is still out in the garage somewhere and I always get a smile when I run across it.
Hit some yards and maybe you can Frankenstein some rods or whatever for your setup and work properly, good luck with it:-D