Thread: how much initial advance for a SBF ?
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Old 09-04-2012, 07:50 AM
ERA Chas ERA Chas is offline
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Brent is right. Modern heads with heart-shaped chambers and quench like 28 to 31. If your original heads are unmodified then the higher numbers are suitable.
BTW-those Weber screens may be a 'rev-limiter'...
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