Edelbrock Head Issue - Anyone else have this problem?

Yes. I'm saying Edelbrock doesn't cast all their stuff here. You don't have to do every process in this country to claim "MADE IN USA". I know a local porter well who says he started noticing Edelbrock quality getting on par (going down) with import heads about the late 90s. He's called and talked with them before and said it was like talking to a merry go round. Never got a straight answer. He actually really likes the Pro Comp castings. Says they are very high quality.