You can prolly get a couple more dyno HP by advancing the timing some. Would you actually be able to feel the improvement? Possibly. Depends on how far off the timing is to begin with, and how much slop is in the timing chain set.
BEST way to set the timing is by using a vacuum gauge....NOT a timing light. Timing lights are for checking to see where it is AFTER actually setting it, for future reference.
Hook a vacuum gauge up to a manifold vacuum port, then adjust the timing, AND carb settings to achieve the highest vac reading you can get. You'll prolly have to go back/forth between the carb and dist a few times to get the best reading, but once you have it, lock everything down....your timing is set where the engine wants it...not the EPA.
If you want,
now you can put a light on it to see where it shows to be, and use that as the correct setting in the future, assuming the outer ring on the balancer is not moving around.
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Joel Adams
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