Ok, I am in the middle of a build and need a little advice. I am building my VQ35 for boost. I am using eagle h beams, and wesco 95.5 8.8 /1 pistons. I was wondering how much boost I can run on a stock block, with out sleeving it. Also I have herd of a oil pump upgrade but don't know how or what it is. I will be using the APS fuel system so that will not be an issue. (I hope.) Any advise is great. Thanks!