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Bruce of MN · 04-17-2021, 05:36 AM

See the little device I made and the whole thread: https://www.fordbarn.com/forum/showt...ce#post1872892

I have only driven my Coupe with a stock head and a 6:1. In OD, on level ground at 50 mph, it sounds and feels better at less than 28 deg advance. If I come to a slope more than a gentle one, less advance is needed. You need to play with it under various conditions and listen and feel how the engine is straining or clattering and advance and retard as needed. Too much advance for a couple of revs won’t hurt the motor, ditto for too retarded. After a while, it becomes habitual.

04-17-2021, 05:36 AM	#23
Bruce of MN Senior Member Join Date: May 2010 Location: VA Posts: 1,424	Re: SNYDER’S 5.5 head vs 6.1 See the little device I made and the whole thread: https://www.fordbarn.com/forum/showt...ce#post1872892 I have only driven my Coupe with a stock head and a 6:1. In OD, on level ground at 50 mph, it sounds and feels better at less than 28 deg advance. If I come to a slope more than a gentle one, less advance is needed. You need to play with it under various conditions and listen and feel how the engine is straining or clattering and advance and retard as needed. Too much advance for a couple of revs won’t hurt the motor, ditto for too retarded. After a while, it becomes habitual.