So I've done a lot of fruitless research trying to determine which carb fits my GTX. The two carbs that I have are pictured below. The one with the red tag reads "322 4326S" and the one with the silver tag reads "4327S". My car is a 440 HP with a standard transmission.

I need to know which carb is the right one for my car. The extra linkage on the right side of the 4326 makes me think it's for an auto trans, but what I've read online saus its for the standard. The 4327 has thrown me completely.

Also, is there a company out there that can do a complete restro on the carb (looks-wise to bring it back to the factory "shine")?

Thanks in advance guys!

 

is there a difference in cfm's between the two?

 

Honestly, I think they're both 750 cfm carbs. The only difference I can see between them is that the 4326 has extra linkage on one side, and the 4327 has some sort of module on the left side of it that I have no idea what it is.

 

that module disengages the high idle, they both are 750 cfm, other than that i cant tell u much else

the 4327 was the hp carb

 

Thanks Fury. I have read that the 4327 was the right carb for the HP motor. but I have no idea what to do because of the extra linkage on the side...

 

well, for a 67 gtx with a 440, the original carb. is an 800 cfm

 

Carter or Holley 800 CFM?

 

80% were

the extra linkage is detachable, so couldnt you just pull it off?

 

carter

 

Well, because of all the confusion over the carb, does anyone have any exp. with the Edelbrock Performer 800 CFM with the electric choke?

Any forseeable problems I'd run into with using this carb on the car?

 

I just got the thunder series 800 cfm

 

no you should have no problem with the carb at all,

 

Here is a Carter Carburetor Selection guide for different cid engines.

Joe.

 

or you can just take the cid times it by rpm limit and devide by 3456

440x5000rpm /3456= 636.5 so you would round up to 650

 

Hey, thanks for all the help so far guys. I've decided to just use the 750 CFM for now to get the car running. First firing (since 1979) should be this week coming up, so wish me luck! I'm going to save up until I can afford either an old Carter Performer 800 or Edelbrock 800.

Oh, and for your viewing pleasure...

 

sweet! let us know how it runs,

 

looks good