My guess would be triple 2.5's or twin 300's to get into the 70's. The factory would have real numbers.

Never gave the conversion a thought...this may open up the market area
to more prospective customers...thanks for your input.

Jeff, I tried to send you a reply to your message but your box is full.

Yeah OB conversion would be the way to go on that boat. You could beef up the transom like Jimmy did on his boat, Add cockpit space, sell off all the old pieces and buy tripple 200's or 250's for her.

That would be a killer boat with lots of room in it.

Any idea how fast it would be with that rig? How much of a speed difference is there between the OPs and the Outrageouses?