[Formulajones]

Originally Posted by grivera

Which fixed orifice PVC did you use?

Oooof, honestly I'm not sure if there are a bunch of choices or not. I grabbed one off the shelf at the local store with a straight up 3/8 hose nipple that would work on my Chevelle. Same thing you would see in a Pontiac valley pan.

From what I understand though, they all pretty much have just a 2mm or a 3mm hole size in them. Not very big at all. Basically they are just a gutted PCV with a tiny hole in the bottom. A controlled vacuum leak....

I removed mine yesterday and reinstalled the standard PCV. But I'm just sort of playing around with the differences to understand more how it affects the fuel table.