just put in a a/f ratiogauge , 16.2-17.2 in overdrive at 70 mph ( 700r4 , 2.73 gears , 305 tbi ) in drive my a/f's are 14.2-14.9 an wot ther 11.7 .does this sound right ,i'm thinking a bit rich at wot but would like some opinions

 

wot is a little rich. the rest are right.

 

Stock GM programming is usually rich at WOT in order to protect the engine. You could make a little more power by leaning the mixture at WOT, but it could result in engine damage if everything else is not up to spec. (such as a fuel problem)