Hello, Van: There is no vacuum connect to the transmission. Based on my previous experience with Ks (360 hp.), you may have a blown gasket (head, cylinder, etc.), broken compression rings or scored cylinder walls. Also, you may have a burned valve if your K idles roughly (re my '66 Newport wagon). Suggest you perform a cylinder compression test. This may help point you in the right direction. Again, this is what I experienced with the Ks and the Newport wagon I once owned (blown head gasket, broken compression ring and burned valve).. Best, Ron Kurtz E #292 ________________________________ From: rinandal <rinandvan@xxxxxxx> To: Chrysler300@xxxxxxxxxxxxxxx Sent: Thursday, August 8, 2013 3:38 PM Subject: [Chrysler300] Question about 1964 auto transmission Hi, Is there any engine vacuum connection( vacuum modulator e.g.) to the auto transmission in a 1964 300k? Reason for asking is that my 300 runs, idles fine until I put in gear then is runs like crap, vacuum drops5 to 7 points. And it stay that way even while driving on the road. Any insight out there? Thanks all, Van [Non-text portions of this message have been removed] ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or go to http://autos.groups.yahoo.com/group/Chrysler300/join and select the "Leave Group" button For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylangYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: Chrysler300-digest@xxxxxxxxxxxxxxx Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> 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/