4000 rpm's at 60, no 3rd?

Yep, as long as it works right and doesn't bind up the tranny wont care what the rods look like.
When I first converted my Dart to 4bbl the 2 BBL parts I had were too long and I needed a shorter rod by about a inch that I couldn't get outa the adjustment. I ended up putting a small bolt that in the slotted piece with the spring, it made it think it was a inch shorter then tweaked it till it shifted just like I wanted.
It worked fine like that for over a year till I found the right pieces that are on it now.