Hey BigDogg,
Well I havn't used one yet but plan to unite one with my Muncie M-21 one of these days,I've done a lot of research and am pretty much sold as it will be the best way for me to have a good gear for out of the hole plus a good cruising speed/RPM on the highway and still be able to keep the the good ol "Muncie Whine" that I enjoy so much about Muncie transmissions,I don't know that I can answer your questions but since no one else has I'd be glad to try anyway,Let me know,Later,KillerDave