Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › 66 Comet w/289… oil flow stopped after tightening rockers. › 66 Comet w/289… oil flow stopped after tightening rockers…?? April 14, 2012 at 11:00 am #440025 619DioFanParticipant Quoted From Six6vetteguy: I would go stock pump…hv can run the motor dry. + 1 on a stock oil pump. would only run hv pump with an after market extra capacity oil pan.