I have a 292 with the 6.2's, it came with Merc labbed 30's, which I didn't like at all, sucked up gas like it was free.
I put on a stock set of 28's, much better cruise and mid range, which is what I wanted. The top end speed stayed the same, about 70 GPS, but I don't run as high rpm's at wot.
My fuel economy increased by about 30% by going to the 28's.
Works for me.

Live Wire, what gear ratio in your drives??? Do the 6.2s actually break in or turn more rpm after say 20-30 hrs?

Live Wire, Do you still have the 30's? I'd be interested if you were of a mind to part with them.

The 353 w/ 575's and boxes would be a hot ticket. I could sell the wife on the size...I just need a few more fun tickets to pay the premium. Until then the 292 is pretty sweet and it's easy to trail around the mid-Atlantic.

I think that my gearing is 1.65. I really don't remember mine getting loose after 20-30 hrs or so. Right now I have about 130hrs and I think they run pretty good. Of course I was still learning to operate the boat. At that time I was pretty much trying to over drive it, by that I mean that I was using too much tab, me trying to make the boat run the way I thought it should, not the way it would if I were to stop nutzing with it.
Much better if I let it find where it wants to run.
The biggest improvement was going to the stock 28p four blade B1's. My mid range cruise really improved, my milage jumped by about 30%.

Bikini, Yes I still have them. I can send you pics if you'd like.

That'd be great thanks. If I had the same mileage jump it would be even nicer!

Bikini, send me your e-mail address and i'll send you some pics.

Live Wire...Just e-mailed you

Bikini, you've got mail.