Stu, what is the max pressure you can get out of that compreser???
I have not taken it to its stall point yet.
It has gone to 400 psi.
I have no idea of how much higher it can go.
BTW I have another 8,00 BTU compressor from a Friedrich A/C and it is MUCH heavier with larger copper, etc.
I haven't tried it.
Some folks use a pair of compressors in series for 800-1,000 psi.
I haven't researched it, but it is doable.
BoyntonStu