does the oil light in the dash come on when it drops to 0?
what kind of balancer do u have?
i wouldnt run the car with no oil pressure

your problem sounds just like something that happened to me a few months ago. turns out my oil pump went bad due to a cheap aftermarket balancer. had Collin over at racingintegration drop the pan and my oil pump drive was in pieces. thankfully i turned off the car immediately when my pressure dropped to 0 and never started it again. had it towed to his shop. he noticed that i had a cheap aftermarket balancer on it and replaced it with a stock piece and a new oem oil pump. he also checked the bottom end and everything was ok. he said i got lucky. been running fine ever since