I have an '86 Camaro with a 305 4bbl carb. I guess its a CC Rochester Qjet since it has 2 or 3 different electrical plugs on it. There is no vacum advance on the distributer, so I guess its mechanical. Will all Camaros have a white/brown wire to disconnect in order to set the timing? I cant locate such a wire on the passenger side near firewall, then I read in a thread it may be on the drivers side. What indications will I get if I unplug the wire to let me know I have the correct wire unplugged?

Thank you

 

With the carb system, that's not how you do the timing....

You have to unplug the connection between the distributor and the outside world.

There are 2 harnesses coming out of the base of the distributor; the one that goes up to the cap with 3 wires in it, and one that hangs free and has about 4 or 5 wires in it, and a big flat Weatherpak type connector. It usually hangs down behind the dist, between the intake manifold and the trans tunnel. You have to unplug that one to set the timing to the factory spec.

With the engine off, unplug that. Start the engine up. It will run terrible and light the Check Engine light. Check and if necessary set the timing. Turn the car off, hook the plug back up, re-start the engine, and the light should go out.

 

Thanks for the reply and the information...I will look for the wire harness you described...

 

i have the stock balancer and timing cover and I'm just wondering how to read it the deep grove in the timing tab is 0*? and each piont is 2*? what is a good start for base timing?

 

Actually, it's electronic. There isn't any mechanical or vacuum advance provided by the distributor.

Base timing ranges from 0 to 6 degrees BTDC. Set yours to what the sticker under the hood says, and go from there. Most people see slightly better throttle response with 4-6 degrees advanced.

 

there are no stickers on my car not even an single rpo ill try that but how do i read the timing tab?

 

You had it right.

 

thank you