new race car, no oil pressure

after stewing on it for a bit, with a clear head, I have come up with what I believe to be the cause of this whole mess. you guys correct me if I'm wrong. oil leaves the pump and goes straight to the oil filter. when it leaves the oil filter, it goes straight up, and runs to the main oil galley, the port for the oil pressure fitting, and to the rear main and cam journal bearings. is that correct?

if so, my thought is that he has drove the rear tube just far enough into the block, to cover the last 4 lifter holes, and has the main oil feed coming up from the oil filter, covered with the copper tube. that kit has 2 copper tubes in it. one drives in from the front, and covers the first 4 lifter oil holes. then, the other come in from the back, and covers the remaining 4 lifter oil holes. if he only drove the tubes in far enough to cover the oil holes, there would be "empty space" between the 4th and 5th lifter bores. in other words, the tubes would not be butted up end to end. that space would be a couple inches long. meaning there would be more room to drive that rear tube, and doing so would uncover the oil feed hole coiming up from the oil filter. any thoughts on that theory?