How do you tighten the power steering pump on a 1983 olds delta 88 307 v-8?

You must locate 3 bolts securing the pump to the engine.. Main support bolt.. Adjustment bolt at elongated hole and the rear pump stabilizing bolt.. once loose so that the pump moves back and forth, pull the pump against the belt until the belt deflects up or down in the middle of it's travel no more than 1/2 inch.. That's 1/4" up and 1/4" down.. Tighten the adjustment bolt first, then the remaining bolts.. Job done. It will take two hands unless you have the special tool to hold the pump for you.