318 Spark Plug Gap?

Looked at my friends '93 ram 250 forestry service truck today. Has all the underhood stickers still, NV4500, 241 T-Case, 4.10 gears and front and rear limited slip differentials, magnum 360, all wrapped up in beautiful fluorescent snot green. Tune up spec label said Champion RN12YC's, .032 plug gap. Same thing my tune up label says... Why mess with perfection?