Distributor Vac port? - Team Camaro Tech
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post #1 of 6 (permalink) Old Dec 4th, 18, 08:37 AM Thread Starter
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Distributor Vac port?

Is the stock distributor (67 327 2 brl) a timed vacuum distributor?
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post #2 of 6 (permalink) Old Dec 4th, 18, 09:29 AM
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Re: Distributor Vac port?

Not in 1967. Ported vacuum is a response to emission laws that were not being placed in effect as of 1967, but were on the books. Your distributor should see full manifold vacuum.

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post #3 of 6 (permalink) Old Dec 4th, 18, 04:58 PM
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Re: Distributor Vac port?

Quote:
Not in 1967. Ported vacuum is a response to emission laws that were not being placed in effect as of 1967, but were on the books. Your distributor should see full manifold vacuum.
That's only partially correct. I had to check with John since I couldn't remember, but he verified that any car that got K19 A.I.R. (all 67 Camaros built in LA and destined for sale in California, as well as Norwood built cars destined for California), got ported vacuum. Norwood cars (as well as cars built in LA) destined for other states didn't get K19, so they got full vacuum.

So basically, if your car came with the smog pump, you got ported vacuum. If it didn't, you got full vacuum.

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Last edited by bertfam; Dec 4th, 18 at 05:13 PM.
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post #4 of 6 (permalink) Old Dec 4th, 18, 08:19 PM Thread Starter
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Re: Distributor Vac port?

Ah the plot thickens....CA emission car or not....

There is no smog pump on the car....but I am the 3rd owner. It's a Norwood car that was sent to California (1st owner) and Arizona for the 2nd. So IDK if it came with smog pump. Distributor vac now is into the carb, Rochester 2 brl. It goes into the hard line on mid PS of carb.

I can pull the distributor vac line at idle and see if the Rochester is pulling vacuum at idle.

Putting on a Edelbrock 4 brl and install instructions advise confirming so I hook up vac to either Timed Vacuum or Manifold vacuum port

Car is hard to get started which is why I ask.
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post #5 of 6 (permalink) Old Dec 5th, 18, 05:58 AM
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Re: Distributor Vac port?

If you're changing carbs (and even if you're not), put it on full manifold vacuum. You'll get better performance and the engine temperature will be cooler. The ONLY reason to leave it on ported vacuum is if you're restoring the car and will be having it judged.

Read THIS for more info.

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post #6 of 6 (permalink) Old Dec 5th, 18, 07:45 AM Thread Starter
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Re: Distributor Vac port?

^^^^ THANK YOU

Will use the manifold (below blade) vac port on carb for distributor vac advance
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