What do I need to get an A/F ratio gaugfe and actually use it?

The Green GT said:

Ive heard that I need different O2 sensors. What kind do I need and where can I get them?

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Yes, from the factory, we have narrow band o2 sensors, which are only accurate at 14.64 a/f ratio. Anything above/below is crap and useless. A wideband is accurate from 10:1 - 18:1 iirc. This will allow you to actually monitor a/f live and make adjustments as necessary.

You need a wideband O2 sensor. You can get a wideband O2 plus the LC-1 controller from innovate motorsports for under $200. The controller has analog outputs to wire it to the factory wiring. Or, which is a better option, you can weld a o2 bung on the exhaust pipe (either side) and run it seperate. That is my plan; it also has a plug in so you can watch it on a laptop so you don't have to use a gauge. The bung needs to be before the catalytic converts. If you have a o/r pipe, you can put it anywhere after the collector.
Scott