If i were to place a resistor on the positive lead of my MAF sensor, would i be able to alter my a/f ratio in order to gain more power? if so, any idea what ohm resistor would be a good selection?
Yes and no. The ratio change will only be effective at a certain range, depending on the resistor used - why not try it with a variable resistor - change it run it, change it run it...
But depending on your cars age - you may find it overrides anyway!