No, you don't need top end lube with e85...you do with methanol, but not with e85 (thanks to the 15% gasoline).
I converted my carb to e85 in the spring and I have been VERY happy with the results. The short version is, it runs WAY cooler, picked up over 2 tenths in the 1/4 mile, WAY cheaper than race gas, and it is super consistent once you get it tuned. It took me a while to get my setup tuned well, and I had to buy a wideband to assist because it is very hard to read the plugs (e85 burns very clean).
Here is the thread from the first time I went to test at the track with the new e85 setup:
http://www.forabodiesonly.com/mopar/showthread.php?t=273321
