I just cranked my freshly rebuilt motor over this weekend. Noticed it was not firing correclty so I checked my spark on each plug and found all the firing was on the no 3 spark. Popped out my distributor to find the gears ground away. I called the cam shop and the machine shop that assembled the short block. The thought is because I used a high flow oil pump this could be creating the problem. Have any of you ever heard this?