Hi all, I picked up an '82 280ZX N/A a few weeks ago, however there seems to be a little problem, it seems to have a slight to moderate misfire. I replaced all the plugs wires cap and rotor, I have good spark on all cylinders. I replaced all of the injectors with little change. Cylinder #3 seems to be the culprit. I ran a compression check on all cylinders and they turned out to be within specs all within 5 PSI, from what I can remember 130-170 PSI, give or take some. The mis seems to be most obvious at low RPM, below 3K or so, after that it seems ok. Heres what i know about the car, it has a rebuilt motor, i confirmed that. I peeked in the cylinders an the hone marks look brand new. When i bought the car, it came with turbo injectors, they seem factory, they were old so i replaced them. The valves sound a little noisy, could use an adjustment. I was given advice by two people so far, First, run some fuel system cleaner and see if it cleans up, maybe some carbon build up on the valves. Second, check the valve clearance to see if they might have too much play possibly not opening the all the way. Thats all that i can remember. Any help would be great.