I run solid flat tappets in both toys, the Mustang is a little looser clearance and gets Valvoline VR1 20w50 and the truck runs on Rotella 15w40.
489 is 9 years old and has about 20 psi at idle and shoots right up immediately, the truck has a stock gauge and is is either on the high end or right in the middle. Who knows what the pressure is, but it looks good LOL