I just picked up a 6bbl, air grabber - my car only has a single nipple valve cover breather. So the center car bowl vent has nothing to plug into.

Is this correct? I know there are 3 nipple breathers, but I believe those are for cars with a vent line back to the tank.

So, should my car have a 2 nipple breather or does the center carb vent somewhere else ?