I am putting the 300G through some road testing and under hard acceleration I am getting knocking. I would think it might be Air fuel mixture or low octane gas. I am running 90 octane. Any thoughts. Valves? Timing? Do I need to add lead? -- For archives go to http://www.forwardlook.net/300-archive/search.htm#querylang --- You received this message because you are subscribed to the Google Groups "Chrysler 300 Club International" group. To unsubscribe from this group and stop receiving emails from it, send an email to chrysler-300-club-international+unsubscribe@xxxxxxxxxxxxxxxx. To view this discussion on the web visit https://groups.google.com/d/msgid/chrysler-300-club-international/B34139EC-DB88-4364-906E-912D18309978%40comcast.net.