Quadrajet or Aftermarket?

[TheSaint]

What’s happening y’all? I recently picked up an 86 Regal with a newer 350 swap. It has a quadrajet on it and it’s not running properly. I feel like it’s a carb issue. It’s hard to start, (electric choke isn’t connected to anything) once it’s running it idles funky and seems to drown when you give it gas. Wondering if it makes sense to rebuild or just go aftermarket with it? Any input would be appreciated!

 

[abbey castro]

Your crimped fuel line (shown in picture) looks like cuts off almost 50% of fuel flow into the carb. It is starving the carb when it needs it the most WOT. I solved my hard start with an electric fuel pump; pushing from the rear not pulling from the engine compartment.

 

[TheSaint]

Your crimped fuel line (shown in picture) looks like cuts off almost 50% of fuel flow into the carb. It is starving the carb when it needs it the most WOT. I solved my hard start with an electric fuel pump; pushing from the rear not pulling from the engine compartment.

lol yeah I figured that would be part of the problem, so that’s getting fixed as well.

 

[olds307 and 403]

What is that carb off? It looks like a CCC carb, no good without the computer.

 

[pagrunt]

The quadrajet is cheaper, as having the current one rebuilt would be abetter way to save some money. But seeing that yours is a computer controlled another one that's not a computer controled one would be a better way to go.

As for aftermartket, guys have less good luck with the Edelbrocks, Holleys do cost more, there are the Holley like others. That being an aftermarket intake there should be the dual pattern carb pad so you wouldn't need an adapter plate.

But as noted, fix that fuel line first & see if there is anything in the harness for the electric choke wire as the original engine should of had it on its carb. After that if things don't improve work towards another carb even if it has the old school divorce choke as the intake has the pad for the temperature spring unit to mount to.

 

[ELCAM]

Likely nothing major wrong with the QJ. Get the choke operating properly, Get the distributor vacuum advance connected to the proper vacuum port and replace all the dry rubber hoses and plugs, some look new some look really old.

The electronic connector is not an issue, it is for a 2 stage accelerator pump if it is not connected it just operates like a regular QJ.

What's the number stamped on the drivers side?

 

[86LK]

Home | Mountain Man Fuel Systems LLC 479-639-2022 Hackett Arkansas Text or Call

www.mountainmanfuelsystemsllc.com

 

[TheSaint]

Likely nothing major wrong with the QJ. Get the choke operating properly, Get the distributor vacuum advance connected to the proper vacuum port and replace all the dry rubber hoses and plugs, some look new some look really old.

The electronic connector is not an issue, it is for a 2 stage accelerator pump if it is not connected it just operates like a regular QJ.

What's the number stamped on the drivers side?

17085226 is on the carb. If I remember correctly it’s M4MED I’ll grab some more hoses and plugs tomorrow and swap them out. I appreciate the response

 

[TheSaint]

The quadrajet is cheaper, as having the current one rebuilt would be abetter way to save some money. But seeing that yours is a computer controlled another one that's not a computer controled one would be a better way to go.

As for aftermartket, guys have less good luck with the Edelbrocks, Holleys do cost more, there are the Holley like others. That being an aftermarket intake there should be the dual pattern carb pad so you wouldn't need an adapter plate.

But as noted, fix that fuel line first & see if there is anything in the harness for the electric choke wire as the original engine should have had it on its carb. After that if things don't improve work towards another carb even if it has the old school divorce choke as the intake has the pad for the temperature spring unit to mount to.

Thanks for the info I’ll try and troubleshoot some and see if I can get it running decent

 

[joesregalproject]

Using that number, that carb is off of a 1985 Chevy motor with an automatic transmission. I prefer Q-Jets over anything aftermarket, but I can see from your photos, your fuel line is an issue, your choke is not hooked up, and you are completely missing the primary choke pull off.

If it has been sitting a while, I'd pull it and put a rebuild kit in it. There are dozens of videos on how to do it.