I would go a 770 vac sec holley ,but thats your choice ,water pump, just make sure you get the right side outlet ,and a lot of late blocks only take electric fuel pumps .If you go c4/c10 really, its a better box than a c6 ,smaller ,lighter ,and drains less hp .If you are buying the c10 out of the usa get a good brand hi stall and a trans cooler and front yoke .If you are using your std shifter you may need a c4 rod ,not to sure about that .