Hi! I bought volvo penta 550 last weekend and im planning to put it to my hardtop boat. Ive tried to find whats the difference between 550 and 700 but i havent found anything. Does someone know is there something else than carburetors? There isnt much information from these könig engines at the internet so thats why ask from here. I have vp 350,400 and 600 also and from those engines theres lots of more information