It looks like Keisler made an adapter bell to run a 700R4/4L60 style trans behind a Mopar. Those trans work fine in cruisers, but aren't that good for racing. The big RPM drop between 1ST and 2ND isn't good for et's. 6500RPM shifts drop all the way to 3600RPM on the 1-2 shift. I wish they (or someone) could make one for the 200R4 style trans which has more race friendly ratios; pretty much identical to an A500, with better packaging. There are adapter plates, but they don't look as nice and can cause tunnel fitment issues.