Re: horsepower
I don't think you'll find anyone here with a suggestion on your 5.0. There are no chips available for the marine packages that I know of or have seen posted here, and your 5.0 is doing really good making around 280 at the flywheel as it is . . . <br /><br />The carbed 5.7s only made around 235 at the prop (yours 260), so you can see that a 5.0 is really working as yours is rated now. Fact is that you need more air, and the only way you're gonna get it is with displacement (new engine) or a blower. These guys sell a lot of systems in our area:<br /><br />
Whipple Charger <br /><br />They just don't do the 5.0 as far as I can tell. This stuff is expensive too. $6000 for the 350 Mag and 6.2 systems which may bolt onto the 5.0, but they won't have the software developed for your engine . . . They don't like doing that because there are not very many guys trying to get a bunch of horsepower out of 5.0s. No return on the development $ . . .<br /><br />Oh, oh, and what Fireship says about the drive capability is true too, so the repower options are limited by the drive. A 300 350 Mag is the most that Merc puts in front of the Alpha. You can push that a little if you're careful and know that it will eventually fail . . .
