To be safe, if one was concerned rather or not it has a flat tappet cam, it would be easy to pull the intake off and examine the lifters. If it is determined a flat tappet cam exists, could you not just pull the valley plugs above the cam and squirt some new cam lube through the holes, then pull the valve covers and remove the double valve (inner) spring for cam break-in and start the motor as Jerry suggested in post #2?
Just asking..