i got this quadrajet off my buddie to run while i try to rebuild my carter it has a electronic plug on the top of it it is off a 80s firbird that ran well anyway do i have to hook up this plug and what is it for???? if it cant run without or if i might have a plug hanging in there that will run it there are a few it had a 2.8 multi now has a 77 350 hei vac advance

 

There is nothing in your car that you can plug into that carb. You need a computer-controlled carburetor harness and ECM, along with the distributor and all sensors, to get that carb to run properly.

 

X2. Get a Holley don't bother rebuilding the carter.

 

Why not? I know many people who run Edelbrock carbs, which are Carter AFB's. Including myself, and it's been great. I've never run a Holley, but I don't tell anyone not to, they may prefer those over the Edelbrocks.

Have you ever run a Carter or Edelbrock?

 

Holley til the day I die.

 

If the quadrajet only has a plug on top and does NOT have the three wire TPS plug on the left/front then it's a mechanical qjet and you can use it. Some mechanical models came with a two wire fuel enrichment solenoid that has a plug similar to the MCS plug on top of ccc-qjets. Odds are against this though. The ccc-qjet appeared on fbodys by at least '81 maybe earlier.

 

Yes on at least 6 different cars, they came with them I didn't put them on there. The Holleys I replaced them with were always a HUGE improvement. In a 4 barrel carb Holley and Holley clones are head and shoulders above the rest.