'67 318 PCV Routing

[JLeather]

I suspect my aftermarket PCV system is causing my cab tuning issues (too much idle bypass air). I want to return to a stock-ish system so I've ordered a new stock PCV but I don't remember how it was plumbed. Anyone got a pic handy, or can confirm that it was plumbed the same as most modern systems (PCV in one valvecover plumbed into carb base, breather in opposite valvecover)? I think I can gut the aftermarket PCV so it's just an elbow and then plumb the stock one between that and the carb base.

[wally426ci]

Here is how it is set-up on my 1968 318 with Edelbrock 600 4 barrel

front port to driver side valve cover grommet/valve.

[JLeather]

Wally, do you know what p/n that PCV is? Based on RockAuto I ordered a V180. Will be trying it out this weekend if I can get the Jegs-brand PCV apart and turned into just an elbow.

[wally426ci]

Not sure actually, it is the same as the ones on the 71 and up Muscle cars. I have a couple original ones if you don't find it. Original is the metal style.

[Kaegi]

usually located on passenger side with breather cap on drivers. pcv runs to manifold vacuum

[martincom]

To test your PCV valve: Pinch off the vacuum hose from the PCV with needle nose pliers. The idle speed should drop 50 - 100 RPM with a properly functioning PCV valve.

[JLeather]

To test your PCV valve: Pinch off the vacuum hose from the PCV with needle nose pliers. The idle speed should drop 50 - 100 RPM with a properly functioning PCV valve.

With the aftermarket PCV I'm dropping almost 250 rpm's vs. a capped hose...