I drove around my buddy Mike Musto's B-Body with a 727 & Gear Vendors for a weekend. It was just too litlle of a good thing with that .78 to 1 OD. I wouldn't bother for that little of an improvement.

Then again I run an Extreme Automatics Stage 2 2004R with a 3800 rpm lock-up converter from Precision of New Hampton behind my 408 Magnum. It's the best performing transmission I've ever driven and has a 2.76 to 1 first gear and a .67 OD. Locking up the converter makes it seem like a 5 speed by dropping about 350 rpm in 4th. I painted it black and put a Mopar sticker on it for the purists.

Although if you have over 1000hp & 850tq, you would have to upgrade to a Stage 3 version.