What is the correct spark plug gap for a 1996 Nissan SX se with a 1.6 L 4 cylinder engine?

I have a 1995 200SX and when I bought spark plugs they were pregapped. Shouldnt have to gap them. I put NGK iridium spark plugs in and k&n air filter and my fuel economy is Excellent for an older car! edit: Sparkplug gap should be .44