Carter 4615S is the stock carb for '69 383 manuals and will have the dashpot. It does slow the return to idle from 2000+RPM. Keeps the vacuum advance raised while dropping throttle while speed shifting, reducing emissions. 4426S for '68 carb and it too will have the dashpot.
http://www.tocmp.com/manuals/Carbs/Carter/Chrysler/1965-1979/pdf/Chrysler121-173.pdf
Scroll down to Form 5526C for '68 AVS parts list
and Form 5534A for '69 parts list. There is a difference in primary rods and secondary jets.

Last edited by Pynzo; 07/21/14 09:17 PM.