I think he might be talking about using a belt driven pump with stock oil pan?
Thought belt driven pumps where usually used in "dry sump" configurations
Correct me if I'm wrong but in race cars the main purpose of a dry sump oiling system is to prevent going dry from slosh in high g forces. In a pulling truck or drag truck I'm sure a wet sump external oil pump would be just fine, given you have the need for more flow