I think the problem with talking about Speedmaster heads is they are a hot button topic for many. Some absolutely hate them, some think they are a good value with some risks, and some wont run anything besides cast iron. I am somewhere in the middle, with good components I am getting a good bang for the buck on these heads until I spend 4 times as much to run Trick Flows something of the like. I also understand there is a bit of elevated risk, I bought bare castings and had them assembled with good components to negate much of that risk. There is also no shortage of quality issues with other domestic manufacturers as well.
