i hate the gas crisis as much as you guys, in fact my wife and i bought a chevy aveo with no a/c (in tx that is a major problem) just to get better mileage bc my truck was killing us, plus surviving on one vehicle is hard to do.

back to the engine conversion.. i will most likely be using the 25cc husqvarna, what size prop should i select? i was thinking 16x6 or 17x5?