I'm building a 45" deep vee with a Homie 30cc engine.
What prop do you guys suggest for submerged drive?

I have a Prather 260 now.
As I understand it, the props up to 265 have a 3/16 bore, and the 270 and larger have a 1/4 bore.

If you say I need a 270 or larger, I will just build it with a 1/4 stub shaft, instead of a 3/16.

Homelite 30cc with a big bore carb (28), and some kind of free flowing exhaust, or a pipe.

TIA,

Joe Petro