To try to clear things up. They were only installed on single 2or 4bbl carbs.With duels the vacuum volume was not great enuff and also you would be trying to burn all the fumes in only 4 cylinders.The plate under the carb was ether aluminum or finolick. with 1/2 tube with rolled nipple and squashed into a oval shape where it went into the plate.They were never required on ram cars buy the state ,but you never know about local stuff.Jim McMullan 300 F James McMullan macthehammer@xxxxxxxxxxxxx Why Wait? Move to EarthLink. [Non-text portions of this message have been removed] 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/