NO. NO. NO. !!!!
Be sure and put the mechanical pump upside down.
I think some of the problems and strange fixes are the result of some people thinking the 230, 250, 292 pump should look like a V8 pump when mounted.
The inline Chevy six is mounted with the line fittings on the top.
When I bought my truck, the pump had been mounted with the fittings on the bottom. They had added an electric pump that was pushing through the mechanical pump.