I just started going thru my dad\'s old shop in Detroit and there is a ton of old stuff in there! Some of the parts I am finding are from cars he used to own and some I have no clue why he has them.He was especially fond of Mopars and may have had the car this fit but I don\'t remember it. From the research I have done, I believe the J5 date code is 1966 but may be 1965. I\'m sure if you need it you know. The info I found was on a date code L5 and had this info:Carter 4131 AFB {with L5 Tag}1966
Dodge..........383/325 HP
Plymouth......383/325 HP Dodge.........440/350 HP
Chrysler......440/365 HPThrottle Plates...... 1 7/16\" Primary x 1 9/16\" Secondary
Venturi Sizes........ 1.186\" x 1.313\"
Jet Sizes.............. 0.92\" Primary x .089\" Secondary Advertised CFM Rating = 575. My carb is J5 code.

This carb appears to have been freshly rebuilt and all throttles and linkages work freely but it sat unboxed for probably 30 years and thus covered in dust on top. This wassitting on a shelf andWYSIWYG.Tagstill intact. May need to be rebuilt again but might clean up with a good air spray. Sold as is as seen.These are OEM MOPAR parts and NOT repops! Watch other sales for what is going to be a years long liquidation of stuff! Thanx