[Shotimes] Underhood oil smoke

[Peter Chase]

As I was pulling into my parking spot after lunch, a huge amount of oil
smoke started billowing out from under my hood. I immediately shut it down
and popped the hood to notice that all of the smoke was coming from the rear
bank of cylinders, some through the intake snakes and some from behind the
snakes by the firewall. Is an oil pressure sensor back there that could have
gone bad all of a sudden? Could my rear valve cover gasket have gone bad
during my short trip to lunch? Has anyone had any similar experiences?
Thanks,
 Peter