coolant poring out water pump but not from gaskets on 1993 Buick Roadmaster

replaced water pump gaskets now the coolant poring out of it

I assume from your statement that it is leaking somewhere from the water pump and your sure the gaskets are in the correct place? It has to be a hose or coming out of the water pump weep hole in the bottom of the pump or the water pump shaft. You need to pressure test it to locate the leak.
2 more answers
just replaced my pump, was coming out the weep hole on bottom but couldn't see it till pulled it off, pumps are cheap, i just put a new one on, all is well.
had the same problem retighed bolts problem fixed