1971 Demon Hood cutouts

Thank you for that info. I will definitely do my research and buy the grommets first. The only measurements I have come up with so far is 4.125” for hole size.
I just received my grommets this week as I will also be opening up my hood openings this spring.I guess I will be sure to measure them before making the hole. Lots of good info in this thread.I found this picture online while doing my own research. Cannot confirm measurements but it’s a start.RJ

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