Looks like the a500 FTW, wish I would have done one now I dumped a bunch into my a904 that has the 2.74 low gear set. Can't justify the 2-3MPG, if that, I'd get in return to do one now. :D
I picked up a LOT more than 2-3 mpg, just wish I had more time to drive the car this summer but I have been working on this since May23rd. 24 x 40 with 12 foot walls, plenty of room for two lifts, will be working in style this winter! A lot of work though and the rain storms coming through every 2 days or so are killing my progress.
