I'm not disagreeing with you. The ones I have seem to have decent valve work but the valves have .025" of difference between the intake and exhaust valve height. The exhaust valves are lower which would effect the lifter preload if I wasn't using adjustable rockers. They still needed to be torn down and cleaned up before use. They didn't clean them properly. There was some easily broken off casting flash/metal filings in the ports and the guides needed to be cleaned. The valves didn't move smoothly until the guides were cleaned. They also came with some dented edges on the head gasket surfaces that need some clean up too. I cleaned up the heads, guides and ports first to ensure the valves worked smoothly. Since they needed to come apart I've been doing some port work so I'll be cleaning again. I'm probably going to get the milled slightly to clean up the head surfaces.
I would guess they just did the valve work then blew the heads off with some air quick and just threw them together. They weren't ready to run just like you said.
I was less then impressed when I contacted them about the gasket surface damage and the metal filings. They blamed me. I had just unboxed and un-bagged them on a plastic table right before I called them. After being told any issues would need to be fixed on my dime I torn them down myself and found the guide issues.
