My 273 turned out to be a 318...what did I buy?

Since everyone has been so helpful, I thought I'd post a few more pics. I am definitely not thrilled with the location of the fuel pump (front passenger frame rail under the horn). Going to relocate to the rear of the car and try to use as much steel line as possible to replace all that rubber line. Carb is a Holley 4 barrel 600 CFM (R84010-2). Any additional info and tips is greatly appreciated!

Cut outs.JPEG

Driveshaft.JPEG

Fuel line at firewall.JPEG

Fuel pump.JPEG

Holley R84010-2 Overhead.JPEG

Holley R84010-2.JPEG

Rear end.JPEG