Factory Carbie?

Hey guys,

Drove the 318 '72 Scamp for the first time yesterday. Major fuelling issues - massively rich, fouling plugs, stalling off idle. I took the air cleaner off to find this massive, unfamiliar (I guess factory) two barrel with fuel leaks everywhere and a whole bunch of broken emissions/choke gear hanging off it.

Is this factory carb worth rebuilding/saving? I'm inclined to remove it and replace it with a 350cfm Holley. Is this standard LA motor practice?

Any advice would be appreciated!

Thanks

Nick