air/oil, you'll find service manuals etc and two setup guides in the Archive.
Quadra where the Elastomer budget counter part
40PSI is the pressure to start at.
Standard pump goes to 60PSI, as mentioned, so you can easily see the 1PSI adjustments.
Service pump goes to 100PSI (if anyone cares)
Other things to alter are oil height to alter the spring rate.
Post a picture up while you're at it.