New Gas Tank, 4 vent tubes

Classic Industries- $159 found it in the mopar catalog. Stated it was the correct one for my car. BUt I think its for a CA car with the extra vents.
I don't se how capping my extras would do any harm since the original only has the filler neck vent.
Though I needed to replace the whole tank because of the sediment I was getting in my fuel filter. But when I pulled off the old tank the inside looks great just had sediment floating around in the fuel.