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Thread: chevy 383- timing and carb advise
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Old 09-30-2009, 03:51 PM
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Quote:
Originally Posted by RowShan
Ok so last night, I adjusted the timing, it seemed like when I went up to around 34 it seems ok, I noticed though that the mark on the harmonic balancer was pretty irratic! It seemed to move back and forth almost 5 degrees...
This could be due to the mechanical advance springs being right at the point that the engine RPM is causing advance to begin. Try either a stiffer spring on one side or lowering the idle speed to see if the timing stabilizes.
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