pcv valve

[Pipesmatt]

i have a 72' c20 with a stock 69' 5.7 350 in it... im trying to find the correct pcv valve.. right now the one im using is stamped 52.. what are you guys using? my timing is set at 10 btdc, all in at 34 at 3000 rpm... vac is at 21hg at 700 rmp idle.. thanks for your time and input...

[coreyjhen]

There is an adjustable PCV valve available, but it costs over $100. You might try running the PCV valve from a high performance car (maybe a Corvette?) of similar vintage. It would certainly be cheaper.

[Pipesmatt]

thanks for the reply.

[geezer#99]

There's a test here to determine if yours is adequate.
http://www.hotrodders.com/forum/pcv-...on-434178.html

[Pipesmatt]

Awesome! Thank you very very much, thats exactly what i was looking for! been researching pcv valves and this is by far the best info! much appreciated

[Sicklajoie]

I got this one and took the 90 degree boot off my old one.
https://www.amazon.com/Fram-FV181-Po...ype=automotive

[Pipesmatt]

thanks🖒