I have a fresh 350 engine with a few performance goodies in it, Flattop's, cam, intake, and a Melling high volume oil pump. With less than 300 miles on it, I only have 10-12 pounds oil pressure at idle. Rolling down the highway the oil pressure is 45 psi. This seems kind of low for a new engine to me. Am I just paranoid or is this normal. This is my very first engine build. I've talked to the machinist that did the work and he tells me it's fine. What do you people think?