What size ETEC?

[THEFERMANATOR]

Well your 85 has a 60 gallon tank to start with, and a ETEC should get you roughly 3 MPG. That gets you roughly 150-180 miles of useable range right there. I would go for the 175 if I could afford it. The 150-200 small blocks are all the same basic engine size and weight within a few pounds. The 200 small block carries a bigger price tag, but I don't think the 175 is much more than the 150. Also bear in mind that then newer engines are heavier. Your old 225 weighed in around 450-475 pounds, and the new small block ETECS weigh in at 420 or there abouts. So you won't be losing much weight. Also if you do much trolling I would give some serious thought to the 4 stroke SUZUKI. And don't count out the OPTIMAX either as I believe it wins the fuel economy competition hands down amongst any of the new outboards. It is the loudest of them, but also I believe it is the most affordable. just remember that no matter which one you go with, you will be replacing pretty much all of your rigging anyways. I would pick a 175HP and go with the brand that will have the best dealer support for you locally.