I currently have 6 boats...

all small.
smallest is a laser the biggest is a stoker 20'
they range from mild to wild.
The stoker is the fastest at this point. a hair under 94mph on gps is the fastest I've taken it. with a prob swap and a higher jack plate i'd pick up a few mph.
I've had several boats over the years that broke the 100 mph mark, but its about $1000 per mph faster once you hit 90.
The fastest was a 17' flatty with a blown injected alky 521 ford. Had it to 117.42 mph on gps.
There is another saying in boating...
every one wants a 100 mph boat, until they own one.
Been there done that, I may own another one again, but I'd have to get a smoking deal on one some one else built. Then again a 300xs on the back of the stoker would get me there easy, but they are about $18k, 23 ish installed with controls. $1000 per mph remember lol...