I just got done installing my pan. Same thing as yours, the ports aren’t drilled/tapped, but it did come with the plugs for them? Came with a set of Holley branded installation instructions and a “302-61” sticker on the box. Pickup tube fits perfect and everything fits great. Unsure if I’ll need to use the oil return ports or not. Don’t think so since I’m not running a turbo or anything external….?