Nice!  I know it is harder these days to find the hydroboost cans that had the 2nd return port.  80’s GM diesels had them.

Well, if you want that bling anyway.  A Saginaw pump is a Saginaw pump otherwise.  The only difference between applications is the pressure relief valve, which can be swapped and/or modified with shims to alter the pressure (Borgeson sells a kit to do this (899001)). 

I think those ports face forward because GM used a cooler, so the return was coming from the front. 
 

Nos681 wrote:

GM had hydro boost brakes on diesels too.

All Diesel I've ever sen use hydroboost.  Diesels have no throttle plate because they are throttled by fuel, not air, and thus make no vacuum to run a typical vacuum booster. 

I ordered a 90 degree elbow which should work out well.  The 45 I had points the hose right at the header. 

MS wrote:

Jose’s 65 has the forward facing return line. I liked it because it made for a neat routing of the return hose along the frame rail. 
The pump on
My 65 faces straight back towards the exhaust manifold, a bad setup. I would prefer it to point forward or straight down. (Borgeson box)

 
If you look you can see it’s pretty much a straight shot for the return line from the steering rack to the pump, this is how it fits after I bent the tube.   But you bring up a good point MS, our setups are most likely completely different because I’m running the MII front end.


I think the CVF kit also kicks the PS pump outward a bit giving more room to get to the back of the pump.   Like every thing I touch on this build, it turns into project that takes ten times longer to complete than I had hoped.  Everything has to be modified.