Which one is more hydro dynamically efficient at moderate speeds up to 20-30 knots for moderate light vessel?

Planing or Hydrofoil ?

I am considering to upgrade my power catamaran with hydrofoils similar to moth foils.

It will be very interesting to find out what is minimal HP required to lift such boat

almost 5 meters long 110 kg boat + 150 kg crew + 30 kg motor = 290 kg

Above the water on hydrofoils or get planing (on specifically designed planing surface)

I have 3 motors available for tests:
- 6 HP Suzuki
-Tohatsu 18 HP
- Electric 2 x 1.1 KW 24 V