i was just wondering if there is a way to hook up an air fuel ratio guage if i dont have cats or any o2 sensors in my car.

 

You can get an O2 sensor and a weld in bung for you exhaust, install the O2 sensor and run your A/F gauge.

 

There are lots of kits out there that come with gauge, weld in bung, and O2 sensors. I think people reccomend the wide band O2 sensors for better readings. There might even be some handhled units that have clip on sensors but they are pricey.