how do you set the timing for a 4.3 litre v-6 on 1999 Chevrolet Blazer

how do you find top dead center to set the timing on a 4.3 v-6

Asked by for the 1999 Chevrolet Blazer
remove the spark plug from number 1 cylinder.that is the first one on the driver side. tap the motor till you feel compression and then hand turn the motor till the mark lines up on the crank pulley to the pointer. that is tdc.