You do know the 587 casting has a 360 port right? Which is what I said.
Why start with a grind on a 318 head when you can use a 360 head and get a better port without grinding.
You are so disingenuous its sad. You posted a picture of a car that’s not yours (typical) and made the claim he was going fast on 318 heads. And he’s NOT.
You need the help as you are borderline mental. You’re not as smart as you think you are and at best you are a lying poser.