Ok, couple of problems with this post,but i can live with it. First off im pretty sure what you guys are talking about is a blower,not a super charger. A super charger forces more fuel into the engine. A turbo charger forces more air into the engine by forcing the exhaust to spin the pump. A blower is run off of the crankshaft. All that aside this sounds like a cool idea although other things more than likely should be done first. One thing your going to need to do,if you plan on running any considerable amount of boost is lower the compression. if you do not i almost gaurantee it will detonate. Another consideration might be too balance the engine as well. This way you can rev the engine out more without running the risk of things flying apart. If you do plan on reving it out make sure you remove the governor assembly(if it is internal) at highspeeds these things fly apart and wreck things,expensive things. Now considering youve done all this why not run about 16 lbs boost, 16 lbs boost doubles your horsepower. And while your at it get some NOS thats always fun. NOS can add 100 to 300 percent of your horse power. Which means if you really wanted to we could probly push about 40 horse with the right cam out of that little 5 horse! Mind you it might cost you a small fortune. Personally id start with something a little bigger than a five horse. Oh well call me old fashioned but biggers always better. Anyway ill save everyone the trouble,i know maybe this is litlle over the top,so dont bother telling me,just keep these things in mind.