<VV> Oil Pressure

[Padgett]

Any thoughts on oil pressure ? One book says "35 psi" but not at what rpm. 
Old timey rule of thumb was "10 psi per 1000 rpm" but the original Chevvy 
power book (mimeographed) said not to exceed 55 psi.

Prolly never should have bothered but at filter am getting (fully warmed up 
on 10W30, dial gauge on adapt-a-bolt, 66 110) 18 psi at 350 rpm (4 cyl 
firing), 25 psi at 700 rpm (6 cyl firing), 30 psi at 1500 rpm and 36 psi 
(needle vibrating, think relief is opening) at 2000 rpm. Don't think I have 
any pressure issues.

Padgett