chevy nova

Follow the fuel supply line from the carb, should go right to it, mechanical pump. I'll try to find a picture. There may be a push rod that operates the pump arm, it may fall down in the cavity when you remove the pump, have to make sure that rod is up before installing pump.

I can't be sure the picture is correct? The canister to the right, looks like oil filter. The part at the top looks like distributor?