How rich should it be

[90AWDGSX]

I got a new 02 sensor and that fixed my previous problem. Now I am trying to figure out where I should keep the a/f ratio. Is stoitch the optimum ratio for building power or should it be a couple bars rich. Keep in mind I am putting my 50 shot in this week and I have heard running real rich on n2o is the best way. All input will be greatly appreciated.

[Dallas J]

Im gonna go ahead and assume you have an autometer blinky light guage? Might as well just never look at that, its essecially worthless. If you want to use o2s for tuning then get a wide band cause youll never know where youre really at. If you search on the topic you find tons of info cause of the new availability of wideband o2 sensors.

Your best bet is to get a pocketlogger and tune for knock. Do a 1-2-3 gear pull and then lean it out according to what 3rd says. Keep doing that leaning it out untill you start to get knock, then add a little. Thats basic tuning right there.

-Dallas J