I'm currently running a 26P bravo 1 at aroung 4800 rpm's. Very little positive trim. The boat is light in the bow. What difference should I expect running a 27P hydomotive.

I would think you would see alot less RPM.. and not in the optimal horse power range.

Why not lab the 26 or go to a 24 hydro and pick up a couple RPM? I am looking at doing the same.

i have a pair of 25p hydro's that i'll sell.

Probably going need a 24 Hydro. Looks like you need more rpm. You need an inch or less pitch in a hydro to spin the same as a Bravo prop. The Hydro(Q4) will give more stern lift and keep the bow down.

I'm looking for stern lift and I would have the bravo worked but it is a left. I prefer a right.

A Hydromotive Q4 will give a LOT more stern lift. It is night and day compared to a Bravo prop. What engine you have will determine what pitch.