what should my air fuel be??

[jasonsnova]

so i just bought a wide band o2 sensor for my nova , what should i be looking for for a/f ratios at idle,part throttle, and wide open throttel???
keep in mind its a sbc and see's 4-5 times a year at the drags, when it goes to the strip it see's 150-180 shot of nitrous... thanksssssssss