Hi, new to forum but looks like a great site with alot of great info. I did a little searching on the older site but didn't quite find what I was looking for. My question is about oil pumps for the 429/460 engine. Does anybody know where to get a high pressure oil pump spring? Or how much to shim the stock one in order to get higher pressure? I am planning on a future build for my car and wanted to do a little research first. I have a new Sealed Power hv pump, but wanted to get more than the stock pressure out of it. Any suggestions?