Chevrolet Repair: spark lugs, crank shaft, chevy silverado

Question
How do I know where spark plugs go on my distributor on my 1990 chevy silverado 1500?

Answer
HI JACK,I DONT UNDERSTAND YOUR QUESTION ?? DO YOU MEAN IGNITION WIRES GOING INTO THE DISTRIBUTOR CAP ??? IF SO,YOU WILL NEED TO GET THE CRANK SHAFT BALANCER ON TDC [TOP DEAD CENTER] REMOVE THE CAP AND CK WHERE THE ROTOR IS POINTING, PAINT A MARK ON THE DIST HOUSING AND PUT THE CAP BACK ON. THAT IS #1 SO THE LEFT BANK DRIVERS SIDE IS 1,3,5,7 PASS SIDE IS 2,4,6,8  YOUR FIRING ORDER IS 1,8,4,3,6,5,7,2 >> SO # 1 ON CAP GOES TO THE LEFT FRONT SPARK PLUG, IN A CLOCKWISE POSTION ON THE CAP NEXT IN THE FIRING ORDER IS #8 THIS IS THE LAST PLUG ON THE DRIVERS SIDE. #4 CYLINDER GOES NEXT ON THE CAP THIS GOES TO THE SECOND PLUG ON THE PASS SIDE AND SO ON..I HOPE THIS HELPS YOU,IF NOT GET BACK TO ME. PLEASE WHEN YOU LEAVE THIS SITE WOULD YOU RATE MY ANSWER.      THANK YOU,,, TOM..