Would anyone consider running a Q jet on there mopar, I know a few 318-s did? Im not sure I could do it, well I could and just not speak on it but id bet a well setup q jet at wot people would not know the difference between the two. Im really impressed with Q jests with how easy they are to work on and to get to perform.

Q jet you say ? Go wash your mouth out with soap !

PLUS you need electrical SHOCK TREATMENT !!

1000 amp ..., 440 volts sTyLe !

The truth is the Quadrajet and the Thermoquad were the best STREET carburetors (Street use- stop and go driving, cold morning starts all while delivering surprisingly respectable mileage.)

Yeah, like others have pointed out, that one you found has way too many emissions controls stuff on there.

I for one am a huge fan of the 9800 series aftermarket carbs...these are the ones with the attached electric choke. Nice setup for all the various manifold combos, etc.

Having said that, yeah the good ol' TQ still requires you to pay attention to the setups. but done right, they scream!

The 9800 stuff comes up on eBay here and there...just not all that easy to find one on the day you need it.

This ^^^^

A friend's FIL knew Q-jets inside and out plus all the little tricks for them. He tinkered on the Q-jet on my '78 T/A and I couldn't believe the difference. I've never messed with one so I wouldn't really feel comfortable trying it at this late stage of the game. I'm sure there are still a few Q-jet experts out there.
Had my Valiant project not fell through I would have been tinkering on a TQ again.

And maybe hate was too strong a word. But dislikers gonna dislike just doesn't have that ring to it.


Tim

I tried one of the all alum Demon TQ's before I went Hilborn EFI on my 512 in my Charger, it was a much higher pitch sound than the smaller cid combo's I remember from back in the day, I had to return it to Summit racing, very glad they took it back, the accelerator pump kept melting from the ethanol E10 that we have here.

A TQ will work really well as long as it’s not warped. Not sure why it’s voodoo science to so many. Having an original air door tool helps, but isn’t a deal breaker. I thought somebody was making new main bodies a few years back too.

Dayclona is right. The Street Demon functions. Starts easy. Idles well. Easy setup without any fuss. No it does not sound like a Thermoquad.
The original TQ 6318 on my 1973 Charger Rallye 340 CID MT started leaking at the bowl. I gave the Street demon a try.
Unfortunately, I removed it not too long after. One of the E clips on the choke linkage went missing. I'm afraid that it got sucked into the engine. I looked down the intake manifold and around the engine. Nothing!
I bought E clip boxes of variety sizes of metric and standard and nothing fit right. I had to call the manufacturer to get the right E clips.
In my opinion using E clips where they can come loose and end up in the engine is not a good design. Otherwise, I would have nothing against the Street Demon.

In case you are wondering, I rebuilt the original carb and bought a new TOMCO fuel bowl. It's been on there for going on 3 years without any problems.

The Street Demon is sitting on the shelf in it's box. I'm an Engineer and have machining and fabrication skills. I would re-design this part before I use that carb again.

85 through 89 Police 318 four barrel cars switched from TQ to the quadrajet. I've owned several and will say they ran pretty good and also had that great sound.

There are a few pages in the back of my Rochester carb book showing Q-jet applications for 318 Mopars and 429 Fords. Those Ford carbs are like hen's teeth.

I have lots of decisions to make on all three cars but if I go with new carb I am going to just go with the Demon. Thanks for input.

If Y'all run E10 fuel I would find out if they changed the accelerator pump material , they make different ones for the regular Holley type carbs, like I said earlier the ethanol ruined the one I tried

1985-1988 Dodge Trucks and B-Vans with the 360 V8 were also equipped with Rochester Quadrajet carbs from the factory.

Many years ago, I owned a 1985 Dodge truck with a stock 318 2bbl V8. I took off the factory 2bbl intake/carb and installed a used Edelbrock Performer intake and Rochester Q-Jet carb.

The carb came from a late 1980s Dodge Truck with a 360 V8. I bought it from an auto wreckers and had it rebuilt by a local carb rebuilder.

The truck ran great with the Q-Jet. Started instantly hot and cold. Gas mileage and power improved. Overall drivability was much than the factory 2bbl carb.

I like the Q-Jets and I highly recommend them. IMO, they are a more reliable carb then the Thermoquad.

I owned an export 1989 Chrysler Fifth Avenue 318CID with a Q jet from the factory. It ran great. Started great. I never had to mess with it.

On a different note, I owned a 1979 LRE. It had a 500 CFM manual choke Edelbrock sitting on an adapter when I bought it. The tire smoke terrorized more than one Mustang GT. I did replace it with TQ 6139 for the TQ "growl".

At the end of the day, pick what fits your needs. There are a few good options.

When Carter began to stop their production, Chrysler began to use the Q-Jet as the T-Quad replacement. And it was a natural movement since Carter offered to build them due Rochester poor capacity to produce more stock

I found small hairpin clips to substitute for the eclips. They word great with a needle nose pliers. I have found the Street Demon very touchy on the tune. Select a jet so you can tune with the metering rods and not have to take the carb apart for jet changes all the time. If I had to do it over again, I would choose a AVS 2.

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https://carburetion.walkerproducts.com/carter/carter-carburetor-kit-4bbl-tq/

Hangtowner can you please explain a little bit more about the hairpin clips you referenced. I'm very interested to have a close look. Maybe a picture or link would be great.

BTW I was looking at the new Edelbrock AVS2 last Summer at the Muscle Machines car show in Minnesota. The Edelbrock representative was explaining some of the finer improvements in flow, metering etc....
That is something I will try once I drop the 383 back in my 70 Challenger.
If and when you try the AVS2 please provide feedback.

Hairpin clip picture shows it is on the choke flap end of the linkage. I also put it on the accelerator pump. I couldn't find a receipt so it either came from Amazon or the local hardware store.

Did someone say THE NEW AND IMPROVED air door tool ?