Re: Distributors and advance curves - how many did Packard build?

Posted by PackardV8 On 2010/6/19 15:17:17

TRy running spark plugs one heat range colder than the current spark plugs. It won't make up for any lack of distributor fine tuning as JV recommends but a cooler plug can greatly reduce or eleminate spark knock without any other adverse effects unless the plug heat range gets too cold.