Not a stang question...but still ford...360 help

[freak007]

ok,first it has electronic ignition,I did not replace the condensor,but when i said about "stomping on it coming out of a corner"it was a power comparison,not how the truck is normally driven,it is normally driven very nicely(cause otherwise it only gets 3mpg!!),I have checked for vaccum leaks around the manifold and carb base and found none,the vaccum reading I took was at the manifold,yesteday under the advise of some locals I advanced the timing from fords reccomendation of 6* to 10*,the idle smoothed out,the vaccum went up to 6 inches,and there was a slight power increase,mileage has yet to be determined,but an a whim,when I disconnected the vaccum advance I plugged it with my gauge and got a reading of...ZERO,I belive this is part of the reason for bad mileage/missing at 40-50MPH,I will look into it some more...


how much differance will a 4bbl make on mileage/performance??