PCV plumbing

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Feb 18, 2008 | 09:59 AM

John30559

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From: Mineral Bluff Georgia

PCV plumbing

I have a 1965 327/365, Holley performer carb, stock HP manifold ( winters logo on front) I just had my single point distributer reworked by Lars, superb job. Should I now plumb a PCV line in which does not currently exist, if so where. My manifold has a plug in the rear behind the carb, and the Holley has a PCV port. The filler tube has a port, where should that go.

Feb 18, 2008 | 10:02 AM

62Jeff

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Joined: May 2005

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From: Conroe Texas

Hose runs from the oil filller tube, to a fitting on the driver's side of the carb.

Big hose runs from the back of the engine block to the air cleaner base

I'll see if I can find another forum post that already has pictures...

Found one, this should help
http://forums.corvetteforum.com/show...&highlight=PCV

Last edited by 62Jeff; Feb 18, 2008 at 10:05 AM.

Feb 18, 2008 | 01:28 PM

John30559

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From: Mineral Bluff Georgia

Thanks for your input. This explains how to plumb what I currently have. I have read alot here about the positive aspects of having a PCV valve in an engine such as mine. Since mine does not currently employe one, should I plumb one in in some manner, and if so has anyone retrofitted one who could tell me how it goes. I also read alot on LARS install instructions regarding manifold advance verses ported advance. I have both ports on my carb, should i use manifold vaccum as my advance. I have an adjustable timing light and can time it o.k. Just trying to get the best possible set up with what I have

Feb 18, 2008 | 01:33 PM

62Jeff

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From: Conroe Texas

Quote:

Originally Posted by John30559

I have read alot here about the positive aspects of having a PCV valve in an engine such as mine. Since mine does not currently employe one, should I plumb one in in some manner, and if so has anyone retrofitted one who could tell me how it goes.

I'm not sure I follow the question - when you say "could tell me how it goes" do you mean "could tell me how it is working out" or do you mean "could tell me how to plumb it"?

Quote:

I also read alot on LARS install instructions regarding manifold advance verses ported advance. I have both ports on my carb, should i use manifold vaccum as my advance. I have an adjustable timing light and can time it o.k. Just trying to get the best possible set up with what I have

Honestly, I'd do whatever Lars says, he really knows his stuff. My 65 with the 327/350 horse engine, and Holley 2818 carb, gets the vacuum advance vacuum off the side of the front carb metering block, as was originally configured from the factory. I haven't recently read Lars' paper to know if my car meets with his recommendations.

Feb 18, 2008 | 01:37 PM

Paul L

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From: Ontario

I am not familiar with that carb but there might be a few hints here.

Feb 18, 2008 | 01:47 PM

lars

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From: At my Bar drinking and wrenching in Lafayette Colorado

Run manifold vacuum to your vacuum advance unless you have to pass an emissions test.

Feb 18, 2008 | 02:41 PM

JohnZ

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From: Washington Michigan

Your Holley Performer carb doesn't have the hole in the driver's side of the main body for the original 90* fitting - only the 2818 had it. Instead, use a '66 or '67 oil fill tube with a threaded bung in it, a '67 PCV valve that screws into the bung, and a PCV hose from the valve to the PCV port on your baseplate, like Paul67's photo above. That was the production setup for '66-'67.

Feb 18, 2008 | 03:18 PM

John30559

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From: Mineral Bluff Georgia

Yeah I may have confused some here with my question as it was posed, but John Z gave me the answer that I was looking for, I'll get a 67 Oil fill tube, thanks to all who take their time to read and help dummies like me.