89 Nissan

Hey I have an 89 Nissan pick up and am about to change the spark plugs on it. I was just wondering I have 8 spark plugs, 4 for the intake and 4 for the exhaust now I'm just wondering which spark plugs go where. Do the intake ones go on the left or right?

intake plugs on the side by the carb exhaust plug on the right by the exhaust

you need to take the air filter assembly off for the intake plugs.