update did some more digging from visual assessment it appears to me that:
TERREPOWER 7312226
LARES 2593
Cardone 20-8714
these appear to be the same as the current pump.
I just picked up a 1980 c30 with the 454, it is leaking power steering fluid at the pump at the steering box and possibly spraying some out form the hydro boost block. To fix it I wanted to replace the pump and the steering box however I cant find anything for sale that has the same routing as...