Louis. My survivor H was tuned to factory (service manual) settings. I didn't do it, but the mechanic told me. I use pump premium and it runs fine. I think my carbs need rebuilding, since it does seem to run a bit rich (which the mechanic said that was the best he could do). But all in all for 123K miles, it runs good. Jim Maiani Houghton Lake Michigan H From: Louis M. Barrie Sent: Friday, April 23, 2010 11:39 AM To: Chrysler 300 Club International, Inc. Subject: [Chrysler300] Timing is Everything! Weekend discussion topic: For all F, G and H owners - What is the consensus for optimum timing for our 413's? I am running a +13 degrees using Racing Gas (101 octane) and Big Yellow runs great and purrs like a kitten! The trade off is that gas is about $6.80 per gallon. Sure, that's a lot of money, but with annual mileage of about 1500 total, it's tolerable. I have run timing as low as +5 degrees, but Big Yellow was not happy, and still would ping somewhat, especially when warm. What say you fine folks? Louis M. Barrie West Hills, CA Home of Big Yellow [Non-text portions of this message have been removed] [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: Chrysler300-unsubscribe@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: 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/