ok, so I put some headers and a complete exhaust on my 85 LG4. I take it for a test ride and it misses like crazy when I romp on it. So, I took it to my buddy who is a mechanic and told him to look at it. He said that my secondary linkage rod on the passenger side of the carb was gone. He also says that is why I am getting a bog followed by miss firing when i get on it. So I am writing to ask:
1.) can anyone relate to this problem?
2.) does anyone have an LG4 or L69 carb that would be willing to part with their secondary linkage rod? (for a price of course)

 

Just go to a junkyard and pull one off, and get some extra rods and hangers while your at it. Most Q-Jets parts are the same.

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George P. Lara
1994 Z28 LT1 T56
1984 Z28 High Output
Member: SCCA, SCFB, SC3GFB

 

Dooh!

[This message has been edited by MRZ28HO (edited September 14, 2000).]

 

Agreed, that is by far your best bet.
...ed

 

Sounds like you're talking about the rod to the choke pull-off. You can live without it, and perhaps you didn't have a problem until you improved your engine's breathing with the headers.

Tighten up the secondary AV tension a bit at a time, test driving between adjustments, until the bog/misfiring goes away. Without the rod, you're putting the control of the AV purely on the spring tension, instead of being dependant upon the release rate of the pull-off. That isn't all bad.

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82 Berlinetta, orig V-6 car. Rescued w/86 LG4/TH700R with all harnesses, sensors, ECM, etc. 3.08 open, cat-back from '91 GTA, Accel HEI SuperCoil. AMSOIL syn lubes bumper-to-bumper. Daily driver, work-in-progress (LB9 w/ZZ3 cam, World 305 heads, exhaust, paint, etc.).
57 Bel Air, my 1st car. Currently 396 .030 over, Weiand Action+, Edelbrock 1901 Q-Jet, Jacobs Omnipack, 1-3/4" headers, TH400 w/TCI Sat Night Special conv & shift kit, 3.08 10-bolt, AMSOIL syn lubes bumper-to-bumper. Best 15.1 @ 5800' Bandimere. Daily driver while Camaro was being put together.