mine with a stock 500efi, bravo hp with 1.50 gears and a 28 stock bravo 4 blader ran 83 gps every day of the week. A 525 should be closer to 85-86 I woud think. I run a Black Hawk drive spinning 31's on it now and it will run just around 90. Soon, there will be a blown and injected 509 between the stringers and that should pick me up a couple more mph
The hull really just starts feeling "good" over 80.