I was told at the lake that some outboards hp can be increased by changing carbs. In theory it seems just like on an auto if you supply more fuel and o2 and the engine can process it than you make more power. But obs have sink n link and stuff like that so now I gotta know if my 84 Johnson 70 might be looking at an upgrade more towards the 100hp my hull is rated for. I almost wish I never heard that cuz it just sped up what I was already thinking.....MORE POWER!!!!!!!!