power steering help

So I been have a nightmare with my pulley system on my 440. I went to 440 source and got the whole shabang. Alternator bracket, alternator bolt kit, water pump pulley, power steering bracket and bolt kit. My crack pulley was same they had so didnt get that. So still cant get the power steering to line up and the bracket even had big gaps where it pulled to the ear of water pump housing. They responding that I had a small block power steering pump. So what you say would that cause it? Any pics of both next to each other? I have 3 pumps in a box so not sure what ones what? Maybe what numbers I should look for on the pumps?