Q-jet vacuum fittings - Team Camaro Tech
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post #1 of 6 (permalink) Old Feb 6th, 07, 01:50 PM Thread Starter
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Q-jet vacuum fittings

Have a '67 Camaro that had a replacement/reman Q-jet 4 barrel carb installed.

Does anyone have documentation to what/where the vacuum fittings on the carb go to?

We got this car from the owner totally disassembled and all the parts in boxes. The engine was rebuilt by a machine shop, but they stuck an Edelbrock carb and manifold on. We talked the customer into putting a stock intake and carb back on which he no longer owned.

I sourced an intake and carb which were not for a '67 Camaro (327/PG car). We sent that carb in as a core for a generic auto parts store reman Q-jet for the '67 Camaro with the 327.

Anyway, there's a few vacuum ports were not sure where they are supposed to go. The factory assembly manual is not much help on this issue.

Any pictures/diagrams would be greatly appreciated.

BTW, were told this is quite a rare car being a '67 Camaro with a 327, glide, Rally Sport, air conditioning, power drum brakes, butternut yellow exterior, gold interior (deluxe), vinyl top, etc. The guy has owned the car since new and were performing a complete restoration and it will be a driver although it's turning out almost too nice to drive. lol.

thanks for any assistance on the Q-jet vacuum port connections.
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post #2 of 6 (permalink) Old Feb 7th, 07, 08:07 AM Thread Starter
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Re: Q-jet vacuum fittings

Nobody here has a restored 327 Camaro with the stock Q-jet on it?
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post #3 of 6 (permalink) Old Feb 7th, 07, 08:49 AM
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Re: Q-jet vacuum fittings

patience japeto . Engine section is one of the busiest sections here in Team Camaro. Answers are dependent on the folks that can offer help but of course at their convenience. Its odd that some days a person can have a difficult questing and get an answer within minutes as someone else had that exact same issue and he shared the answer. Other more simple questions at times wait much longer, there is no way to judge when that help will arrive. Sorry I dont have a clue so I cant help.

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post #4 of 6 (permalink) Old Feb 7th, 07, 08:56 AM Thread Starter
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Re: Q-jet vacuum fittings

Kinda tough to have too much patence as this is a customers car were trying to get ready to start in the next few days. This car has been a real nightmare to work on and were just trying to get it done in a timely manner.
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post #5 of 6 (permalink) Old Feb 7th, 07, 09:28 AM
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Re: Q-jet vacuum fittings

Do you know which model Q-Jet you got? It should be a 4MV, but a 67 4MV only has 3 vac fittings. The one on the front driver side goes to the distributor advance. The larger one on the front of the bottom plate goes to the PCV. The one on the front passenger side goes to the choke pull-off, but that should come connected right out of the box.

The trans vacuum signal comes off a tee on the intake manifold, as would the power brake.

If your Q-jet has a bunch of fittings, it's a later model (pretty common issue when buying at the parts stores) and has extra ports for EGR, etc. You'll just end up putting ugly rubber plugs on those.

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post #6 of 6 (permalink) Old Feb 7th, 07, 09:33 AM
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Re: Q-jet vacuum fittings

PVC is obvious, the 7/32" nipple.
Vac advance comes from the upper nipple on front of the carb, and connects to a solid tubing, in its bracket held in place by an intake bolt, to about 4 inches from the cannister, then its a length of hose.
The air cleaner air door is from the nipple on the passenger side.
Choke pull-off nipple points to the carb nipple, short length of hose.
All other accessories, A/T modulator, A/C, & P/B, come of a fitting on the rear of the intake.

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