Hi Jon,
I'm adding PCV to my restored '36 Chevy pickup engine. The carburetor is a '39-'40 Chevy W-1 with a 94 main jet and a standard size '37 Chevy metering rod. That's the combination that my '36 engine seems to really like. The PCV setup is copied from the Deves method with a Standard brand V-237 PCV valve in a 1 1/4" tube "T"ed on to the 1 1/4" draft tube, with the bottom of the draft tube plugged with a 1 3/16" freeze plug.
The PCV like will be plumbed into a 1/8" pipe port in the intake manifold unless you think it should feed into a plate directly below the carburetor. I would make such a plate from phenolic to retain the present heat insulation provided by the OEM spacer.
Can you tell me what jetting changes or other carburetor modifications you anticipate with this modification?
Thanks Jon!
Last edited by yar; 04/09/2018 11:27 PM.
