OK, I thought as much but wondered about it for a minute. I do think the MP heads are otherwise Edelbrock’s. Why are the Edelbrock plugs on an angle? Well, I have had only 1 big block, a low deck 400, and I think angled plugs would have helped with the 1-3/4 Hedman headers. Specifically #5 & #6. Other than that 1 and only 1 experience, IDK why.