Quote:
Originally Posted by Kahuna
I added a ring behind the crank pulley on my early engine and then added timing tape to it, after locating TDC. The timing is then very easy to adjust. But, how much is too much?
I set it at 24 degrees max, but think it could go more. Can't ever hear it ping.
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Is this a stock engine pre 8 BA ignition? If so your pretty much on the button, you could advance a couple more degrees but it won't gain you anything. Think about what happens mechanically with to much advance. We don't want the piston trying to push up against a charge that's already well on its way to maximum push, we want maximum push at exactly the right time, a bit early or a bit late is a waste of energy.
With high compression heads and or dual carbs will want less maximum advance,
if you haven't got it, get John Lawson's book, this will answer this and many other questions, backed up with dynomometer.
Martin.