It will have sharper response and better part-throttle acceleration with a faster advance curve as suggested, just be sure to listen for knock! An automatic with a higher stall converter is much more tolerant of early & high spark than a stick. Lower (numerical) axle is always worse.
There may be several different shape advance weights for that distributor (there are for the V8) which make the advance rate curve non-linear (each .010" of weight motion away from relaxed does not have the same effect on advance degrees). I haven't experimented with this, but in any event if you're assembling a distributor from parts make sure the 2 weights are an exact match.
