Has anybody installed a stronger spring on the oil pump to raise the oil pressure? I removed the spring today and stretched it hoping it will raise the pressure. I want to say I got the pressure up by 2 pounds at idle so 11psi and 55psi at 3k RPM's. keep in mind this engine has 196k and I don't know the history of this engine. I found a stronger spring here Better spring. just wanted to see if anybody has done this yet?