I have an issue that I need help with and hope someone could help me with. I have a highly modded 302 that I put in my 54 f100. The motor runs just fine (still doing adjustments to carb). The problem is I went out to start it up after reinstalling the stupid holley fuel pump that I have rebuilt several times now, and it shot flames out of the pcv hole on the valve cover. I also checked the oil and it had a fuel smell to it.My first thought is a head gasket gone bad but wanted to get any other thoughts before I do a teardown. Any help would be greatly appreciated.