Re: Can I squeeze more hp of of my O/B?
The same high performance modifications for your snowmobile can be applied to outboards. Exhaust for example. Tuners on your sled can be easily bolted on. Where would you put them on an outboard? Porting can be done but its not bolt on. Bigger carbs can get more fuel and air into the engine, but unless something is done with the exhaust, it can't get out. So you are back to the tuner issue again. So the simple answer to your question is a definite NO. There are no bolt on power boosters. At least none that woud instantly give you a 35% power boost. When buying an outboard, if one needs 80 HP, one buys and 80 HP model.
