My car is missing pretty bad. I can here it missing at idle, but really stumbles when i give it a little gas. Doesn't have any power either, my low end is almost gone and the top end isn't there either. I tried putting in my spare distributor to see if that would help and it didn't. It has new plugs and wires. I tried cleaning the MAF as well. My Boost/Vac gauge is showing 16 lbs vac. at idle. Nothing seems to be helping much. I have a chip on it and tried taking it out, and that seems to help a little. But it still is missing bad. My a/f ratio is pretty fat also. 8 to 9 at idle and about 10 when Im on it. It is the same with my chip in or out. What could cause it to be so fat? My setup is in my sig. Help, I am getting pretty frustrated! I suspect it could be my maf, but I don't want to dish out the cash for a new one unless I am sure thats whats wrong! Also there is no CEL. I tried to do a cylinder balance test a couple of times but couldn't get it to work for some reason. It just kept saying it was testing for like 10 min, and I gave up. Did I not wait long enough? How long is it supposed to take?