egr? to eddy rpm intake match up on a LA318?

EVERYBODY asks this question. That "half moon" is a thermal expansion port and is on every Mopar LA and B/ RB that has crossover ports. It's normal for an intake to expose it

No reason to be such a prick every time someone has a question.
That's what the site is for.
You should chill.
Some folks are still learning,and don't need the hostile attitude.