I bought an edelbrock performer manifold that had a casting defect. You could see daylight through the bottom of the plenum into the valley. I was lucky and discovered it during assembly. I spoke with Vic jr who said it was common and sent a new one out.
Just my experience.
If I didn't think with my penis, I wouldn't think at all
I hope I am not a racist, I mean I drive fast, But I am not specialized at it.