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40 degrees in an FE is a huge amount of timing. If it works for you I'd say go with it. You also have tons of cam, big compression and in theory should be pinging in big way. California is limted to 91 octane using the r+m method. I used a 10% Xylene additive in my initial (light springs, red bushing) settings. 11 gallons of 91 "super" and 10% Xylene (117 octane) nets you about 93.5 octane.
You have aluminum heads and modern chambers, better plug position, better thermal dissapation, better flow and perhaps even cooler plugs. That combination seems to allow you to run a lot of timing. Interesting.
Yea every time you touch your distributor you should need to correct the idle. I need to keep the idle below 850 or it runs on when it's hot. It doesn't like it. It would be happier at 950 or 1000 but it is too prone to diesel not to.
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michael
A man that is young in years, may be old in hours, if he have lost no time. But that happeneth rarely. Generally, youth is like the first cogitations, not so wise as the second. For there is a youth in thoughts, as well as in ages... Sir Francis Bacon (1561-1626)
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