[Double Venom]

Clyde,
All I can tell you is to check the gear material. It is critical. You are not the first one to wipe a gear in 20 minutes or less!

DV

PS..I know it's a lot of work, but trust me. At the minimum, pull the pan, pull every rod bearing, clean before re-installing. Would be wise to pull the intake and go through every lifter also. Like I said, lot of work, but it is necessary if just one tooth got ground up.