Hello guys! I was reading the Ford technical page here in the iatn and saw how the emission levels have changed in the time; it says there: 1970 MY (4.1 HC, 34 CO, 4.0 NOx) 1975 MY (1.5 HC, 15 CO, 3.1 NOx)

(.41 HC, 3.4 CO, 1.0 NOx)

(0.25 HC, 3.4 CO, 0.4 NO... Login to read more.