Outlaw IIs are '80/90s and Classic IIs/8-holes are late-90s till present. The turbine style came along shortly after these trucks in the '70s. Those are period correct, but not actual year correct.
Here is my GMC with period wheels:
9.75 Kelsey-Hayes-
8.25 Turbo Vecs-
9.75 slots-
I found this set of wheels and tires for $40, so I sold the set of same wheels I had for $300. One tire kept losing air, couldn't figure why till we found a 2" crack between two slots where the rim steps on the back side. I just dropped it off at an alloy wheel repair place yesterday to repair for $175. That's just weld up the crack correctly, no pretty it up. The guy totally got my wanting to run "these" wheels on "that" truck in "that" condition. If I ever restore the truck I will polish them up. I actually like the dulled-out look of clean aluminum...pure handsome function