Quick 4barrel carb ID
- Thread starter pagrunt
- Start date
Very good, except I would call the Street Demon a hybrid 3 barrel, designed to fit square and spread bore intakes.
Whelp, clearly it's unneeded if it's been wrapped up all that time. You cover the shipping and I'll take it out of your way 😆
Pretty cool picture, an unmolested Qjet is worth it. Too many Qjets have been butchered and kitbashed by remanufacturers over the years. CCC works great for me, especially with the hot ZZ4 chip.
Here's a picture of E4ME typically found on SBCs.
E4MEs use electric chokes whild E4MC use hot air chokes. E4MEs are usually found on SBCs, E4MCs ard usually tound on Olds 307s. The two carbs are setup very differently and are not interchangeable.
There is also a rare version of the electronic Qjet for 4.1L Buick V6s. That carb has the Chevy style side fuel inlet, its pretty weird.
Last edited:
I brought it up because the image is wrong, that is a Holley HP, these are Dominators.
Many people ditch those those CCC models because they don't understand how they work and or tune them.
For about the first 10 years of the QJ GM contracted Carter to build them.
1967 Buicks and Cadillacs had the side feed fuel line like a Chevy.
I think there are also some early 70s Buicks that also had the Chevy style fuel line. ( Might have been during the strike in 1972)
1967 Buicks and Cadillacs had the side feed fuel line like a Chevy.
I think there are also some early 70s Buicks that also had the Chevy style fuel line. ( Might have been during the strike in 1972)
Agreed, but for me its the extra money involved.
1. The cost of my distributor, buddy could have given me an HEI for free but I had to buy a new one because it’s computer controlled.
2. The ECM in these cars are over 40 years old. It does not make logical sense to buy a new one, if the cost is going to be too much.
Luckily for me, I have a spare that I got for cheap but that’s not the point. If that breaks on the side of the road? You are going to have to run the ignition in the bypass mode.
And I’m not sure if the E4ME can run without the computer, or if that still means a tow truck.
Now if that was a vacuum operated system? Easy swap, no electrical diagnostics, and someone like myself who’s more inclined in that haha, I just don’t want to get DVM’s or scopes out on the side of the 401 near Toronto where cars are shooting by at sometimes 200 km/h 💯💯
CCC system that screws up should put you in the fixed position, or "limp home" mode. You can still drive the car, but it'll run like crap. Or, crappier than it does with the CCC operable.
The ECM's themselves are pretty hearty units. I've accidently dropped them, and they still worked fine afterwards. 95% of the time, they are NOT the problem when the system goes t*ts up.
Most of the time, it's a sensor or wiring issue that is causing the problems. Or a combination of them.
If you don't know how to work on them, then yeah, you're much better off bypassing it. Even as simple as it is, you got to understand it to fix it.
The ECM's themselves are pretty hearty units. I've accidently dropped them, and they still worked fine afterwards. 95% of the time, they are NOT the problem when the system goes t*ts up.
Most of the time, it's a sensor or wiring issue that is causing the problems. Or a combination of them.
If you don't know how to work on them, then yeah, you're much better off bypassing it. Even as simple as it is, you got to understand it to fix it.
Similar threads
