I am purchasing a 14' fisher avenger sc with a side console. The boat weighs 640 lbs. My choices are a 15hp mercury bigfoot 4 stroke vs a 25 hp mercury 2-stoke; both retail for about the same price. I have read the posts on 2 stroke vs 4 stroke but believe I will get better performance form the 25hp.<br /><br />The dealer says that the bigfoot will plane the boat and I should reach approximately 13 mph. I would really appreciate any comments. My previous motor was a 15hp 2-stroke and I seldom got to 10 mph with a 14' sea nymph angler which is about half the weight.<br /><br />All help would be much appreciated. Thanks,<br />JJB