115 hp or 150 hp yamaha

[Seaveyor]

I am about to buy a 1986 v20. I used to own a 1975 with a 115 evinrude that seemed to cruise ok. I really don't care that much about speed as I fish the back bay most of the time. The choice is a about the 115 or 150 four stroke yamaha. If I remember correctly the old boat weighed in at 1920 lbs. My sons are telling me that the newer ones are a different animal.