You'll need a decent sized hood installed for safety, here's a rule of thumb...
The rule of thumb for gas stoves is that the range hood needs to remove 100 cubic feet per minute for every 10,000 BTU’s of burner output. (Gas ranges vary widely in energy output; consult your stove’s manual for the energy rating per burner, which will be in BTU’s, Dr. Shaughnessy said.) So a gas stove with 50,000 BTU’s of total burner output would need a range hood that can accommodate 500 cubic feet per minute. Err toward a stronger vent if you frequently do Asian-style or stir-fry cooking. source
Or total the most burners you'd use at once, but I would not mess around w/o a hood with that beast. Dangerous.