well right now i have a 92 mercury 100hp on my 17 foot flats boat. i was told the engine is about 320lbs. with this engne the boat does about 40 wot. my ? is i have a 1992 70hp johnson that i as told is about 250lbs. do you guys think that the 70hp would push the boat good.if so about how fast will it still go.on of the reason i want to change it is that put on a jack plate and when i left the engine all the way up it hit my poleing plat form. and becuse of the wight.thanks for any help
