I remember we discussed this a while back. I said i'd let you know my pressures when i get the gauge installed, and it took me till now to put together enought fitting to fit the oil filter flange and accomodate both the stock switch and an autometer standard thread sending unit.
Anyway so far I've only measured pressure at the filter.
At cold start-up - 75-80 psi
At normal operating temperature - 20-25 psi
that is both at idle.
I believe these are pretty normal. I will look into reading the head pressures aswell. However I remember telling that i had a bad lifter tick, so ended up replacing the lifters and it fixed the problem, so i am not overall to worried about the head pressure issue any more.