Greetings. I've been agonizing over my own 22' cruiser's repower for a few years now. Here's my two cents: 1. I want 90 rather than 70, not for speed but rather for power when heavily loaded. But forget about speed advantages because you won't normally run either motor at top speed. 2. Lighter in the stern is better. There is no serious debate on this issue. 3. Honda makes the best, most reliable motors,(and cars, and lawnmowers, and ATV's....) but doesn't offer fuel injection in our HP range. Too their 90 is moderately heavy. 4. In your weight calculations, you must consider your kicker, which makes twins relatively more attractive. 5. Twins with completely separate fuel/ignition sources are optimal, but cost around $3,500.00 more than singles. If you already own a serviceable kicker this is a lot of extra dough. 6. I'm liking everything I'm hearing about the E-tec. My conclusion: Unless I can confirm that Honda will add EFI to their 90, I've pretty much settled on the E-tec 90 to repower our 1991 cruiser. If I was specifying for a brand new vessel I think I'd choose twin Honda 50's. Good luck whatever you decide! Mike on Westward