Gap on new spark plugs

[Rusty rudder]

I have a new to me 1976 Johnson Formula E 70hp putting new spark plugs in it what should I set the plug gap at?

 

[Boobie]

.030 ".....

 

[Rusty rudder]

Thanks they look good and it starts right up but it's been setting for bout 18 mouths going to replace them also,replaced gas lines,impeller, lower unit grease trying to avoid problems on water.