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Old 01-30-2019, 06:28 PM   #1
Al Wilson
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Default Adjustable PCV Valve
Are they legal in Stock? Has anyone tried one? This is for an AMC 304 engine, originally equipped with a PCV valve.


http://mewagner.com/
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Old 01-30-2019, 08:54 PM   #2
Mark Yacavone
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Default Re: Adjustable PCV Valve
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Are they legal in Stock?
If they post contingency , they will be.
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Old 01-30-2019, 10:26 PM   #3
John Dinkel
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Default Re: Adjustable PCV Valve
Why not.
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Old 01-31-2019, 01:26 PM   #4
Ed Wright
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Default Re: Adjustable PCV Valve
I played with those when I still had my flow bench. Mid '70s 454" trucks had the highest flowing I found at that time. Must have been ten years ago. An NHRA Tech guy made me take mine off. I still feel like that is wrong, but I try to follow their directions. My car came with one, still feel like it should have one. Gone now.
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Old 01-31-2019, 02:31 PM   #5
Ed McLawhorn Jr.
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Default Re: Adjustable PCV Valve
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I played with those when I still had my flow bench. Mid '70s 454" trucks had the highest flowing I found at that time.
Ed check your pm s.
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Old 01-31-2019, 04:17 PM   #6
Hacksaw
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Default Re: Adjustable PCV Valve
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Originally Posted by Ed Wright View Post
I played with those when I still had my flow bench. Mid '70s 454" trucks had the highest flowing I found at that time. Must have been ten years ago. An NHRA Tech guy made me take mine off. I still feel like that is wrong, but I try to follow their directions. My car came with one, still feel like it should have one. Gone now.
OK, we are talking a drag race engine here so why would you want to let crankcase pressure fumes enter the intake side and taint the fresh fuel charge?
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Old 01-31-2019, 05:44 PM   #7
Jeff Stout
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Default Re: Adjustable PCV Valve
I always thought it was a way to build crankcase vacuum. The bonus is the nitro in the oil going into intake charge.
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Old 01-31-2019, 10:56 PM   #8
Ed Wright
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Default Re: Adjustable PCV Valve
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OK, we are talking a drag race engine here so why would you want to let crankcase pressure fumes enter the intake side and taint the fresh fuel charge?
It's air.
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Old 01-31-2019, 05:56 PM   #9
Ralph A Powell
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Default Re: Adjustable PCV Valve
Don Hardy told me a couple of years ago the Ford 460 was the highest flowing pcv he had found.

Quote:
Originally Posted by Ed Wright View Post
I played with those when I still had my flow bench. Mid '70s 454" trucks had the highest flowing I found at that time. Must have been ten years ago. An NHRA Tech guy made me take mine off. I still feel like that is wrong, but I try to follow their directions. My car came with one, still feel like it should have one. Gone now.
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