-Hi Paul,The AVS-4741S is listed for the 1970-440 with automatic trans.+ A/C only. The service manual says the "S" is for C.A.S. {Clean Air System}. It looks like the AVS's were all "s" carbs. for 1970 to meet EPA standards at that time. Standard trans. got a different # and Non A/C 440s were cursed to live with a couple of 2200 series Holley's for 1970. Quoting from the 70 manual "The idle speed solenoid which is mounted on these carburetors is used to maintain a higher idle speed when the vehicle is running and allows the throttle to close to a low idle speed throttle position when the ignition key is turned off, to prevent after running" Nothing mentioned about changes for location delivery or build date. Hope this helps. Jerry-- Paul Thomassen <thomassenp@xxxxxxxxxxx> wrote: > > I was at a small mopar show over the weekend, and > spotted an AVS Carb in the swap spaces that had the > id number as "4741S" (both on the base and on the > tag). The id numbers on back of our membership > cards list a 4741 carb for the Hurst with AC. This > used carb had the parts on it that included a > solenoid idle stop, an early setup to stop engine > run on after the ignition was turned off. I am sure > this is what the "S" was for on the "4741S" > > Here is the question: Did the Hurst cars come with > 4741 carbs, 4741S carbs, or either. If they came > with either, then were they built with different > carbs for location delivery, or build date, or for > what reason. > > I am sure one of our members has ran across this > before and has the answer. > > Thanks in advance, > > Paul Thomassen > > Pella,Iowa > 70 Hurst > 70 regular 300 > 66 conv 300 > > > [Non-text portions of this message have been > removed] > > > > ------------------------ Yahoo! Groups Sponsor > --------------------~--> > Yahoo! Autos. Everything you need to know about > buying > or selling a car. FREE Quotes, 360° Tours, > Research, > Blue Book, Compare Vehicles, Buy Used > http://us.click.yahoo.com/kEZsdA/bwnGAA/YiGOAA/8LmulB/TM > --------------------------------------------------------------------~-> > > > To send a message to this group, send an email to: > Chrysler300@xxxxxxxxxxxxxxx > > For list server instructions, go to > http://www.chrysler300club.com/yahoolist/inst.htm > Yahoo! Groups Links > > > Chrysler300-unsubscribe@xxxxxxxxxxxxxxx > > > > ------------------------ Yahoo! Groups Sponsor --------------------~--> Yahoo! Autos. Everything you need to know about buying or selling a car. FREE Quotes, 360° Tours, Research, Blue Book, Compare Vehicles, Buy Used http://us.click.yahoo.com/kEZsdA/bwnGAA/YiGOAA/8LmulB/TM --------------------------------------------------------------------~-> To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/