I was just reading the post about brian somebody whos waiting for a 30.5. How much is he paying for that engine, and what fuel will be best to run in something like that? I am more interested in onroad, such as the evo-4 Would this be a good engine for that or a smaller higher reving engine. I have about 12 yrs experience with nitro, but got bored and sold everything. Just looking for something different.