Vacuum Advance Question

Abodybomber said

Don't worry, about timing vacuum advance right now. That 1406 Eddy carb is fuel economy jetted. How does it run. no vacuum advance attached ? That's a frisky cam( and a damn good one..) When you respond with more information, a more clear picture would help diagnosis. (P.S : A lot of the older electronic stock distributors have a adjustable vacuum advance, via a small allen key through the hose nipple.)

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The car should have more power in my opinion, the plugs look decent to my novice eye.
It runs decent without it hooked up, just drinks gas.
I was under the impression that the Allen screw adjusted the amount of vacuum it takes to actuate the canister itself...no?
It seems that one could limit the stroke of any said canister to achieve the desired amount of advance.
Is this a trial and error thing that I need to just keep beating my head against it till it works? lol