67cutlass67GS

I gave the only numbers I could find & nobody knew weather it was dead on correct but did tell me that it was in the era. Ok maybe close enough. Does anyone know the exact type of carb, number model etc that should have come with my 1967 C/S 330 ragtop. My personal research online comes up with a Rochester 7027036. 4MV
It currently has a Rochester 4B withn a long set of numbers stamped into the center body, I also find a sticker from Tomco carbs on the side. Bottom line is i need a new carb & I may even go for an aluminum intake. Thanks