oil pressure?

10 to 15 should be ok at idle. As a rule of thumb you want about 10psi for every 1000 rpms the motor is spiining so 10psi at a 1000rpm idle is ok, aslong as its making atleast 40psi at 4000rpms. If you only have 15psi at 5000rpms you may have a problem.

When my old 340 got tired it was only pushing 10psi warm from idle up. My new motor is pushing 110psi at 7200rpms wich is kind of scary. I'm hoping some synthetic oild will drop the pressure at high rpms a bit.