Dave,
You can also read Jack's impressions elsewhere as he puts his kit engine together. From what I've read so far, his observations are similar to mine. This concept will work well for people who know what to look for and who have some experience rebuilding engines. Working on motorcycles, cars, even a lawnmower is good preparation. Things like how to torque a head, how to drive studs and how and where to use assembly lubricant are the level of skills required if all goes well. Where I don't envy Utterpower is when some utterly clueless individual wants to build one of these, hasn't the first idea how to proceed, represents himself as someone who has more experience than he really does, purchases a kit, and then wants the vendor on the other end of the telephone line to walk him through it. It ain't rocket surgery, but it isn't for someone who has to think twice about which way to turn a wrench to tighten a bolt, either. For that reason, I think George is careful to make sure the buyer is up to the task before he sells him any parts. Some folks have said they felt like they were being interviewed, however that's just George making sure nobody is going to get into deep water without knowing how to swim.
Quinn