I had a catastrophic oil leak today on my Chevy Vortec 350. I only noticed it because of the oil film when my bilge pump kicked on. I took a peek and the bildge had several quarts of oil in it. It was spraying out of the plastic end of the oil sensor / fuel pump switch. I easily could have wasted the engine today. So...what do I buy so that this never ever happens again? Is there a high performance GM 3 plug unit out there?