[aldo]

I'm also very interested in this discussion. We are a rare breed as there were only about 80 inboards produced in the 70's and we are among the last ones standing, or floating I should say.
Mine is a 1976 that originally came with a Ford 351 which was tired by the time I got it in 1992.
I re-powered in 1995 with a Marine Power 350/260 hp with throttle body fuel injection. I tried multiple props and settled on the 16 x 15 with cup as showing the best numbers. Fuel consumption has always been 6gph or less.