Your not going to do 90 mph with 500 HP.
A Superjet is not a 90mph boat imho.
Honestly I think 90 mph may be a bit ambitious.
If your serious about those numbers, look for full stringer, light lay up, non delta pad.
You may even consider going into a gull wing. That will get you into the mid 80's with reasonable horsepower.
And as always you can't miss with a tunnel hull.
Just my thoughts.
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