This all started with the oil light flickering about 20 sec after startup and then going to bright red. I checked the oil level and replaced the oil filter and that was all good. The next thing was to check the actual oil pressure so I took the car to my mechanic and he tested it and told me I only had 5lb and don't drive it. He was too busy to work on it today, maybe later this week. The engine is an all new 400 with a mild cam. It's been run maybe 2hrs. I can't get in touch with the engine builder. Any suggestions.