I think you are probably close to being right on as far as set up goes, my 02 jag with the same 25 trophy prop runs 69 loaded with about 35 gallons of gas. Im at 3200 feet so mine should be a little slower. I couldnt turn a 25 Fury with any kind of holeshot, I went to a 24 and it is great except I lost 1 mph on the top end. You might be able to run the 25 Fury, if you can borrow one I would give it a shot, the 24 Fury puts me all over the rev limiter until the day warms up. I might have mine worked to get another 1/2 pitch ito it. If you want to run in the mid 70s loaded I think youre going to have to slap a 250 on it. I have been kind of on the same program you are on, updating my 02 with Hbird side imagers, an HDS7 Lowrance, a new 101 Fortrex, and a Fury prop. My 225 is still running well and had a new powerhead in 06, so Im holding out on the motor. This is the third season for me in this boat, I think I can go new or near new in 2010 or 2011, but if not Ill eventually repower. Mike Dominick, up in Montana