You can top out around 24-28MPH depending on the prop, and crusie around 18-20 with it. Mine was an 84 with a fresh 1.6L sea-drive on it, and it sure wasn't a speed demon. I had an old beat up 15 pitch stainless on mine that did the job, and let it spin up to about 5300-5350 WOT, and cruised around 4200-4400. Just make sure the tanks FULL before you leave the dock. Mine had a drinkin problem. Plus side though, parts are EVERYWHERE for most of them, and they run forever if feed good oil and fuel.