March performance vs cvf pulleys on 340

Unless yall can convince me the aluminum pulleys are a good idea i may just swap the alternator pulley and maybe the water pump pulley and leave the crank pulley alone. It is painted black which looks pretty good as is and blends in with the dampener. If i did just the alternator pulley and water pump pulley it would give it a nice balance since the power steering pulley is already aluminum.