Q-jet questions

[88ss408]

hey i am building a 84 monte and for my motor i thought on using my motor out of my 88 ss 305H.O but the carb on the ss have 2 plugs(one on top 2 prong blue,and one on the side 3 prong white plug ) i dont remeber what they are for i think one is for a tps and i can't remember the other one but my car only have the wire's for the one blue plugin so can i still use the ss carb or will i have to find another carb with just the one plug ?

 

[megaladon6]

the one on top is the mixture control solenoid.
do you need to worry about emission? if not, it may be easier to just get a non-computer q-jet and a vac advance distrubutor.

 

[88ss408]

no i dont need to worry about emmision i was just wondering on the carb because i wanted to use the parts i had saved form my ss but if i can't use the carb with havin both plugins connected i will jst get a carter or a edelbrock then

 

[mhamilton]

You won't be able to use the electronic carb without the computer. Your metering rods will be out all the time, it will burn gas like there's no tomorrow.

Personally, I would go with a non-computer qjet if this is a driver, much nicer fuel controls over a wider range of conditions.

 

[88ss408]

so geting a carb with the one plug-in or geting an older one that is not ccc at all would be my best bet then ?
are there any difference between the Q-jet's from year to year do some perform better or are they all the same ?that's the reason i was saving my SS carb i thought it maybe a better carb then the other Q-jet's or somthing

 

[megaladon6]

if you're going to a performance engine, especially if it's 350ci or larger, i'd look for an early to mid-80's q-jet from a truck. these are the same carb's that edelbrock uses as the basis for their performer rpm carbs.
this guy is an expert on q-jets and a great guy to work with. he can put together a kit, including rods and jets, for your application. he also wrote the book on modifying them and i recommend reading it.
http://www.cliffshighperformance.com/index.html

 

[85 Cutlass Brougham]

You want one from a 350 preferably, and from around 1977 or newer. Those are basically the same carb with the same connections and hoses as the CCC carb, just with no electronics. I use one off a 1979 Chevy van. Just be sure the throttle shaft bores are not too worn as it will be impossible to get a stable idle speed otherwise. They can be fixed, but it's cheaper to find a good one to start with.

 

[bluebronco69]

so why wouldn't the car pass emissions without the computer controlled carb and dist.? if its tuned right and has cats it should pass right? we are needing to find a way to get my friends ss to run better, and it is eating fuel like no ones business after a carb rebuild, maybe something isnt hooked up like described above
thanks

 

[88ss408]

well i found the carb that i need i think here's a couple of pics

and if somebody here can tell me where these plug in to that would help too

i know that the big one goes to the trans but dont know where the other one goes ?

i know that the white one goes to the carb but dont know about the other ones

 

[megaladon6]

i assume that you're going to have that completely rebuilt? and i mean COMPLETELY.
the black plug in the top pic looks like it's for the choke.
one good thing about GM is that a plug will only fit it's mate. you will have identical ones, but they're seperated by quite a bit.