I've got a 347 striker that I built about a year ago and haven't had a problem until now. When I turn left my oil pressure drops but right is fine and sometimes at idle it bounces slightly. Oil level is fine and not long ago changed like 400-500 miles ago and using same oil I always have. Now my reading is off of my stock gauge so I'm sure it's not accurate at all. I had a hose fed gauge but while doing the engine swap the hose got damaged. What should I do first to solve this matter because I'm sure the brand new oil pump can't be bad already?