Cant seem to find anything on being able to use a non-ecu controlled carb on a 1984 camaro... If I swap out the carb, what happens to the emmissions on the car? Will the converter still lock up? Ultimately I would like to run a carb and the rest of the cars feature work correctly...Any helpp is greatly appreciated. Thanks

What are you trying to achieve by swapping out to a non-cc carb?

I have never played with one and I dont exactly understand how it all works... If can locate all the parts for a fresh rebuild and some good literature, i may be fine with it... Guess Im just looking for an easier way out of it due to not being familiar with it. Not to mention that the wiring in this car is a mess and I was going to eliminate some if possible... Im still weighing the options

Post your questions in the carburator (sp?) section. The guys there are very knowledgeable. Most will tell you that the quadrajet is a VERY reliable and easy to tune carb. I have had little experiance with it, but i have read up on many peoples opinions on the quadrajet vs holley or edelbrock debate. Almost all true gearheads will say keep the quadra jet if you are going for performance and MPG.

Edit: try getting intouch with five7kid here on the forums. He is one of the great MODS on this site. Also he is very carb savvy. I have read many of his threads, and seems to know his way around a carb.

Personally, I think you would be better off either getting a rebuild, or just buy a remanufactured unit - less work. Otherwise you're in the mess of changing out the carb. With that comes the required vacuum advance distributor. Plus all the required work of getting all the other components to work.

Quadrajets are great carbs. Can be run real well on performance motors, too. It's not too difficult to figure them out. A bit of research and you'll have the basics down pretty quick.

The Qjet is one of the better carbs out there. I've used them on everything from 180hp weaklings to 400hp firebreathers, and they work great once you learn how to tune it. Same learning curve as a Holley as far as tuning goes, but the process is a little different.

if you found a non-cc qjet from a Canadian car I'd imagine it would bolt right up and work fine with the emissions crap, only difference is not plugged into computer. not sure if the ecm controls the distributor at all, someone else here could probably tell you that.

Yes the ecm controls the timing advance for the dist (and lockup for trans). Without the stock qjet the ecm won't receive the signals it needs. Replacing all this would, in my mind, require more effort than learning the system you've got and fixing it, if needed.

Dumper - first, welcome aboard thirdgen.org.

Now, I have to agree with those above who say keep the computer q-jet. It's a great street performance system, the only possible improvement would be later-than-3rd-gen-EFI.

I have an 84 that had 305HO that blew up. replaced it with a 1971 chevelle 307 and put a non cc carb ( 1977 ) on it AND a non cc HEI and it runs great. everything works like it should except the check engine lite stays on constantly. also the chock is a thermostat type that rejesters the actual manifold temp. for now till I convert it. if you decide to go with a non cc carb make SURE you also go with the non cc HEI or your MPG will suck majorly. also check your local emmisions laws as you may still have to pass that. here in ohio after 25 years there is non so I can do as I want, but alot of states are not like that. I do however agree with the above, I just got away from the cc issue for looks. less wires and vacuum lines. the Qjet can be modified (even the cc type) up to I think an 850, and with the cc type you will get better MPG then I will ever see with non cc.

Uh, not exactly. It picks up heat from the manifold which heats the air being sucked through the tube to warm up the choke thermostat.

no YOUR wrong. its my car and I know how the darn choke works.

If it is a stock 1977 Q-Jet it has an air heated choke. Some of the earlier stuff ran a divoriced choke, but even it is heated by exhaust gasses and not the manifold.

your both wrong, its the skeeter clutch adjusting valve that controls it


anyway i would have to agree that the CC Q-jet is a great carb when its running right, its not to hard to rebuild also

Being your car doesn't mean you know how the choke works.

And, for the record, I have had a stock 1977 q-jet vehicle and others like it. I know how that type of choke worked.

Im gonna give the cc carb a try. Just found the rebuild info That Aperion posted. Think I killed the printer, but I got it. Again thanks for the info everybody. Look forward to more help soon