Hi guys. Bit of a question thats got the crew scratching our collective heads. We acquired a KB Stage VI block and can't get to the bottom of why the oil pressure is bleeding away to near destructive levels. From cold, the motor in the pits has between 110-125lbs oil pressure, but the hotter the motor gets, the pressure goes as low as 45lbs after a few minutes. When we race at local track we start the car just behind the burnout box, we have about 110lbs of pressure, but by the time we have done the burnout, reversed, and coming forward into stage we are running as low as 45-50lbs of pressure. Top end of the motor is perfect, and all of our rod and main bearings are coming out perfect, we have pressure tested the block and we have no pressure bleeding away from the system. We ran the oil pump on our previous block at Easter and had no trouble with it then, and we are running the same oil lines and fittings as before. Anyone else had anything similar happen to them? If so, I'd love to hear from you because we are very quickly running out of ideas. Thanks everyone for reading.