JohnnyRude question

[chumbucket]

I'm too lazy? I'M TOO LAZY???????????? HA! Go back to sleep.

Ferm. Thank you very much. Do you happen to know what is unique on the 50 cylinder head?
You touched on why I'm asking this. The new ProLine boat I boat has a 50. Underpowered for sure. I know where I can get a junk 70 with a good power head for $500-$600 complete.
I also have looked at a nice 1998 90 hp Johnny which, if it runs as good as it looks, I can get for @ $1800-$2000.
I'm leaning towards the 90 if it checks out. That is the top end of what the boat is rated for. There were a couple of other four stroke motors I looked into, but the extra weight/power ratio didn't seem like a good match for this boat.
What ya think?
MJ. Step away from the keyboard and go back to sleep.