Like other's have said, it depend's on the intended use. Both are good unit's. I've built hundreds of both. For an all out racing trans, a P/G is the better choice 99% of the time. For the most part, it's not even close. There are exception's if you have the coin's tho. Like the Rossler superlite 400 and a few other's. Best suited for a Comp car or a head's up car, or even a Stocker. But for what they cost, (close to twice as much as a killer P/G). I'd much rather have a liberty or lenco setup. For a street/strip car, a 400 with a basic shift kit is hard to beat. The biggest problem with the 400 is the intermediate sprag. Most of those failure's aren't because of weak part's tho, they are because most folk's don't know the proper way to do a burnout with a 400 and they roll the sprag in the water-box.
