Quote Originally Posted by bzubke1 View Post
I've was checking out the new indmar site and it looks like all of their new 330hp and 345hp are designed for regular unleaded.
I also checked out the web site and noticed in the pictures of the engines they have changed the exhaust manifolds. Yes they now have cats standard, but the tubing from the heads to the cats is no longer water jacketed. Along with some other evolutionary changes.

On mine, Indmar calls for 89, I usually run 87 w/o any problems. I may run 89 or higher towards the end of the season to get the enthanol level down in the tank. The higher octane stuff is usually ethanol free depending on the station.

Currently regular 87 is $3.50 gal. I hope it stays under $4 for the summer.