What's to consider? What is the current trans? I assume given where the car came from it is likely a turbo 400 in it now?

FWIW I have run glides for a long time behind a BBM. There really is no issue. Lots of options on how to do it from adapter plates that use Chevy bells to bells with Mopar and glide patterns. I have run both. I can tell you I prefer to run the Gm bell in case I ever need a trans it is prett easy to find one at the track. With a Mopar bell not as easy as most guys run a one piece case. I run Reid cases in the dragster and Stratus the Barracuda has a JW bell and case. When it was built that was pretty much the only option.