Yours, Chip's, Tony, Al and Doug's experiences are promising. I should be around the 950 hp mark (but unfortunately at 4300 pounds...) in my car once the 540 is done, and am worried about the longetivity of any 727. Figure it needs the parts Doug has listed in it for sure and I'll also move to a LBA valve body, and debating the billet input and output shafts as well. Bummer with the billet output shaft though, it doesn't have the speedo gear provision and I'd hate to lose the speedo on a mostly street car.