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Old 12-09-2003, 07:33 PM
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how to set timing

I have a 1992 chevy z71 with a 350 in it. It is all stock and i was told that u have to unplug something or do something to set the timing? Is this right, and how do u do it, I will appreciate any help.

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Old 12-09-2003, 08:00 PM
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Normally on vacuum advance cars/trucks you would unplug the vacuum advance from the distributor, plug it, and slow the idle down before you shoot it with a light, but I must confess that I'm an old school rodder and I'm not sure what year Chevy started to get away from using distributors. If your truck has a conventional distributor, unplug like I mentioned and set the timing to the correct degrees as noted on the white sticker under the hood. After setting the timing, plug the hose back in and adjust the idle.

Good luck!
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Old 12-09-2003, 08:34 PM
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On the passenger side, on the firewall, there is a black cover. Under his cover, you need to unplug the tan wire with black stripe. This is how the computer advances your timing. Set your timing to specs and then plug the wire back up. There is no need to try to adjust timing as you can't; its computer contolled.
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