A.delivering the same quantity of fuel to each cylinder for each power stroke according to engine load
B.maintaining the metering adjustment for a reasonable period under all load conditions
C.timing fuel injection to obtain maximum power and good fuel economy
D.distributing the fuel to all parts of the combustion chamber for proper combustion

A.engine to the bed
B.rocker arm to the camshaft
C.crankshaft to the gear train
D.piston to the crankshaft