1988 force 50hp

[Hotrod758]

I had this engine bored 0.20 over thing runs great I was curious what's some little things I could do to get some more power out of it it's on a 17ft blue fin bass dominator with me and the wife it goes about 28 mph on the garmin fish finder GPS not sure the prop that's on it pretty sure it's the stock one never been changed from the looks of it and the numbers are pitted off. any ideas would be great. I got a tube for my niece and it kinda struggles so I was just trying to do some stuff to possibly get more hp out of it. idk if possibly shaving the head and jetting possibly? I get about 132psi of compression now

 

[jerryjerry05]

Higher comp won't help.
Port and polish might get 1 maybe 2 hp. Maybe.
Boring out to .040 can get a bit more speed. You'll need to rejet the carb at .040
What's the rpms at wide open?
If the props as chewed up as you say?? that can slow you down.
Load and boat size can slow you down too.
You can have it rebuilt and find out what the pitch is.
I think the operating rpms is about 5500
Without knowing the pitch? it's hard to suggest something new.
No matter what you do it's still a 50 and not meant for racing.

 

[racerone]

Much less effort is to find a bigger motor.----Guaranteed results.------Should be a few 70 HP motors in your area.