who made the chip?

to be honest, i never fuck about with unknown chips as you will be risking your engine.

you really need to know who made the chip to find out what the CO% should be at idle, as adjusting the co% screw on the ecu will change the whole map on the chip. if its wrong you'll be running too lean or too much fuel

spark plugs should be OK but i used 071's (ford's own on mine)