soldave Posted November 4, 2014 Report Share Posted November 4, 2014 Seems like a simple question and probably is! The manual states the following: 7 BTDC @ idle (vacuum) 25 BTDC @ 3500-4000rpm I'm not using the vacuum advance so should I still aim for 7 BTDC, or should I just try to tune for 25 degrees at 3500-4000rpm? But then on this site (http://www.belchamber.org/techdist.html) it states: When timing the car rev it to 4500 and set the timing at that rpm to 44 deg So which one is the best to go for, for when my timing light comes in? Quote Link to comment Share on other sites More sharing options...
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