air or fuel, what am i running out of

well i feel a little stupid but happy. i hooked up vac advance and put on a 1'' 4 hole spacer, 1st and 2nd gear i pulled to 6400, she pulls good compared to the 318 that was in there with same cam and heads, way more civilized. dont know why i waited so long to swap over.
Well that is good! What inspired you to try the spacer? I'll have to confess, that would have been waaay down on my list...