I would make sure it had a full fuel load, and a couple of guys in it, then do the 5 gal bucket test

. I don't see without a floatation bracket how you can put 900 pounds on the transom, 120 gals of gas in the tank, a couple of guys fishing off the back, and not have the floor in back be below the waterline. I could be wrong

, let us know what you see/find out.
I would also want to know if the transom was "raised" or "replaced/raised". Without quite a bit of added engineering, and a replaced transom core, that is a lot of weight back there.
The only other thing you might keep in mind, is fuel burn. I don't know where your running to and from, but if your running more than 50 miles in a day, at 4 bucks a gallon (gas+oil), that thing is going to be expensive to run (200 bucks a day). I doubt your going to get much past 1-1.2 mpg with a pair of efi's, but it sure will be a rocket.