Ok, once again, I am back because I STILL cannot figure out why my car is running rich... I went from a 305 TBI to a 350 TBI, i changed the injectors, knock sensor, computer, and so forth. I did install headers and I took off my catalytic converter, and also added a flow"smasher" muffler... I do have my o2 sensor plugged in, and I have one main problem... MY CAR RUNS RICH AS HELL... Do I need to get a tune? If so, could anybody do it for me? I don't have the supplies, nor the patience right now with college, work and girlfriend and such... Any help would be GREATLY appreciated