Fuel pump parked up hill
One thing you may consider since you live in the valley is to use an electric pump and a constant circulating system.
Please tell me more about the constant circulating system.
After my last post, I went to measure the pressure put out by my mechanical fuel pump.
I was working blind and thought I knew what was under there. I twisted a fitting right off the pump. Did not think it was a good idea to try and weld it back together :).
I ordered a generic fuel pump that had a filter before the pump. I mounted it a few inches (about 6 ) above the fuel sending unit. Bolted it to the underside of the trunk.
Beside the filter that came with it, I put in a new filter in the same position and the one I had.
The fuel lines were empty and it took about .5 seconds for the gas to splash in the 2nd fuel filter. Wow that was quick.
Without thinking I pulled her out of the garage a left her on the driveway (facing uphill) without giving it a 2nd thought.
An hour or two later, I realized what I did and dreaded trying to start the car. Started like it was brand new factory fresh.