Several members have suggested the propane trick to locate a vacuum leak. I have tried my variation of that but will follow up with a more elaborate method to be sure. I suspect the leak is likely occuring between runners or into the lifter valley due to the oil burning issue. (slightly blue smoke noted at tailpipe) A friend of mine who has owned and supplied parts for mopars for years suggested I check the position of the distributor drive gear. Neither of us can figure out why/how it could possibly make a difference but he's had experiences where the placement mattered and points out that the position is stressed in many of the factory manuals he's seen. I usually just place the gear in a position that will allow me to position the vacuum advance pot appropriately and then index the plug leads to the rotor. Can anyone offer any info on why that might not be the best way to go? It is specified that the drive gear be placed in a position where the slot is running exactly front-to-back while the engine is at TDC. I'm not sure if mine is in this position or not. Also, before anyone suggest this as a possible problem, the harmonic balancer has been indexed to TDC and is within 2 degrees with no 'walking' noted. Thank you for all the suggestions so far! Ryan Hill _________________________________________________________________ Windows Live Hotmail with drag and drop, you can easily move and organize your mail in one simple step. Get it today! www.newhotmail.ca?icid=WLHMENCA153 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 For archives go to http://www.forwardlook.net/300-archive/ Yahoo! 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: mailto:Chrysler300-digest@xxxxxxxxxxxxxxx mailto: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/