My boat is stock with twin 496HO's.

Any recommendations would be appreciated.

I would think Bravo 28's would be correct.

what, on it now

It's got the stock 28's on it.

I did some reading and someone mentioned "labbed" 28's?

I would think you would want to see where you rpms are WOT. If they are too low from the recommended rpms then labbing the 28's would seem like the thing to do. I the rmps are where they are supposed to be then it may not be worth labbing them because you may just end up banging the rev limiter. You should be able to count on increasing rpms by at least 200 rpm after labbing but I am no expert. Just learning as I go.

30 labbed it will do 78-79

My RPM's right now are only 4600

So if i lab the 28's i should be at 4850 +/-

Wouldn't labbed 30's bring the RPM's down too much on my boat?

if you drop down 1 prop size it should make the boat faster but thats something you would have to test drive to really see.

In that case, yes to labbed 28's or stock 26's. However, your RPM's seem low. What speed are you getting?

with 1/2 tank of fuel and 4 people in the boat i pulled 73.9 on GPS in flat water at 4600-4700 RPM.

Looking for 80 with low fuel and 2 people