Quote Originally Posted by Erjanbalkan View Post
I have a similar issue, at start up its at 50psi (autometer guage), aprox 10min later it drops to 25-30 psi. Im guessing this is
somewhat normal, but is 25psi a bit too low. before i shift at around 3k rpm it'll rise to 35psi. im on stock oil pump and stock heads
I noticed my oil is getting darker color sooner then before and a bit of blue smoke out the exhaust, im i burning oil, bad valve seals?
the engine doesnt make any unusual noise, not really using oil (maybe 1/4 of a quart)... any suggestions. im leaning towards valves.

Before I built my current motor, I was on a stock short block-stock oil pump and Gt-40 heads with bad valve seals. Once warm I was lucky to see 25psi. I am no expert, but if you are still seeing 35psi at around 3k that is within the safe limit. I was burning a quart every 50 miles when my valve seals were toast and I pulled the motor.

Right now I run a Melling High Volume on a freshly built short block and new Twisted Wedge Heads etc...so that is why my pressure is so high