Do you guys think this looks good?: 70cc ACME Round Head Motorized Bicycle Engine Kit - eBay (item 320236483584 end time Apr-12-08 10:16:54 PDT) I guess this engine kit has modified needle bearings, and a couple other mods, I don't quite understand enough to know what the benefit of these mods are. I'm looking for a new 70/80cc engine, and if this is better I might as well get it. When I originally bought my first engine, it was called 80cc. Is it actually NOT 80cc's? I get the impression that it is 70cc, and I think I read somewhere that they are actually 65cc or something. Whats the deal?