Rated 90 hp 4 stroke. No I wouldn't go 90 on one. The 70 is perfect. I wish when I bought mine I would have went with the 9.9 High Thrust electric start power tilt. I wound up putting electric start and charging system on mine. I have 2 batteries and use Scotty electric downriggers. Top speed per GPS I've had mine up to is 37 mph. I went with the 160 sportsman and a roller trailer because I do a lot of beach launching at Freshwater Bay. I've been in some rough water and never felt like I was in danger. The only thing I dislike about my boat is it rides rough in choppy water. I cut a stall mat to fit the front open bow area. I bolted a small aluminum box to that stall mat and I keep 3 extra 15 lb downrigger balls and a 23 lb pyramid anchor up front and that really helps smooth out the ride.