what prop?
 

I am building a phantom 21ft single vee (normaly outboard hull)
and put in a small block ls 2 corvette engine in it attached to a bravo 1 X drive 1:50 lowwater pick up rated at 500hp whit high X dimmension (prop shaft 2" under the bottom)
the total weight of the boat will be arround the 2100lbs.
people here advise a bravo or maximus .

hope to find a few suggestions here

thx bor

Bravo 1 or Hydro Q4.

Have it tweaked directly to the boat post the baseline.

We have props for testing when you are ready.

Brett