AFB or AVS? What is this one?

[64SF]

Is this an AFB or an AVS. Had a metal tag with the number 3859SA stamped on it. Worth rebuilding? CFM? Thanks

 

[mmissile]

1965 afb

 

[moparsteve636]

63-65 615cfm Yes it's worth rebuilding!

 

[64SF]

Thanks guys. I've recently acquired a 64 Sport Fury with a 361/automatic. I was pleasantly surprised when I pulled the air cleaner On my way! Of the previous owners had replaced the 2 barrel with the pictured carb and intake! I'll be starting a thread soon to tell the story. :blush:

 

[lewtot184]

those carbs never had a cfm rating. they're about 4.9sqin's of venturii area (that's how carter used to rate them). it's probably about 475cfm, maybe 500 but no more than that. they are good reliable carbs.

 

[383man]

You can tell the AVS real easy as it will have a spring loaded air valve on the secondary side. AFB's use a weighted air valve down inside the secondary venturi area as you cant see it unless you look down inside the secondary throat. Ron