Once a casual observer does readjust the timing - how do they really know if they have helped or hindered the engine .
My own observation on these is that the timing is fine - use the best pump gas and 32-1 synthetic - ad a free flowing exhaust preferrably tuned and do not over prop it .
fiddlin with the timing will produce no useful results
but if one just likes to fiddle----
I am speaking of the 26 -not some other setup On the otherhand if one adds a sharply tuned exhaust and is on a determined quest to extract every last bit of power - I have found on some other brand engines - the spark needs a bit of retarding if the cylinder pressures get very high (just like running a blower )
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