Why do you want to adjust your air fuel ratio?
It sounds like you need to step back, take a breath, and do some research first. I highly recommend you make an introductory post and talk about your galant, your car knowledge, what are your goals for the car, etc. We can probably help you much better if you get us some background to work with. It can also save you a lot of headache if you have it in your head to go a certain direction, and we know it's a bad one from experience. /ubbthreads/images/graemlins/smile.gif