Do you know what the Primary Reduction Input/Output gears are? The closest I could get to the purported 1.553 was to put a 52/81 combo in for the Primary Reduction.
Using 1.557 Primary Reduction, and the 17 front and 42 rear sprockets, and the 76 inch Measured Rolling Circumference, I came up with a figure of a 6th gear max (at 10,700rpms), of 191.8 mph. If you're willing to dip into the red, at 10,800 you should get it to 193.6mph (allowing for a full tuck and no head wind or very neglible cross wind. I think realistic top speed without gear change is pretty close to 193mph.
I have a 2000 Busa. It's Primary Gear Reduction is 1.59615 (52/83). Coupled with the 17/40 stock Secondary Reduction and all things being equal, its top speed in 6th at rev limiter should be 199.1 mph. Dip into the red at 10,800 and as long as the winds are not limiting either against or cross-wise and I should be going about 200.9 mph. I've had a 16 front on the past year and can only go about 194 if I'm willing to dip into about 12,000 (which I've done about 3 or 4 times this summer). However, I'm thinking of putting my stock back on or even putting an 18 on the front to make sure I can go over 200mph.
BTW: You can have 100hp and hit 200mph if you have the bike geared right. The gears determine top speed, horsepower determines how quickly you reach each gears top speed. I have about 170-172 at the rear wheel right now (race pipe, PC3usb, TRE, airbox mod, K&N, pair valve mod). Still, I want to trade my bike in and get a GSXR1000 so the guys in town stop walking away from me when cloverleafing. I'm scraping pegs and there's a couple of guys that still get away from me (shorter wheelbase, I know).