Edelbrock heads

So watching the needle of the runout gage when checking the concentricity of the seats is simple gimickery for cash? And they set it up so the seat cutter they use only hit one side fot he seat initially? Interesting concept. I fell for it...lol. (and yes, years ago I said "that's BS... show me")
I do agree the failure rate is low. But in terms of business, yes, a business accepts that some of the product will have such issues. In other RPM heads I've found: a single spring with no dampener (spring was defective, but got installed on the assembly line anyway). A retainer with only one lock on it (catastrophic failure imminent if not caught during inspection). At least 3 of 8 exh guides that I measure on every set have less than .0003" clearance. Yes, that's 3 thenths of a thou and the norm is .0005-.001 clearance on exh guide to valve stem. I've used 5 sets of RPMs I unboxed. All 5 had seat and guide issues. We don't have to accept the issues. We can shop elsewhere or deal with it. The Hughes heads as sold... ARE ALREADY CORRECTED. They are sold to Hughes as bare castings and Hughes does the work.