Help w/340 carb selection

MtNemoMopar said

Well John....you have frightened me into sending mine out to be done. It is a 68 also, but for a 4/spd(glad I don't have kickdown to worry about), and I want it to work like new. SOoo....thanks for that$$$

LOL
(hopefully,you will get yours right, and I can pick your brain, to gain some of your new-found knowledge)

Click to expand...

Is that the numbers carb for your car?

If not, the 68's are sort of one year only AVS's. In that they have one center idle adjustment screw. And the adjusters at the base are lead plugged. I took the lead out of mine and couldn't get them to budge.

69-71 AVS's don't have that center adjuster, but have two idle adjusters at the base of the primaries.

The 440 carbs have primaries that are 1 11/16" as opposed to 1 7/16" with the 340 and 383's

The best article I have found on AVS's is in Mopar Action April 1990 issue

In that article by Richard Ehrenburg it lists all the Carb #'s and the jet and rod #'s. Then converts those #'s into diameters. And a bunch of other helpful specs.