1984 GSL-SE 13B Fuel Injected -stock-

Ive been doing my research and have read through lots of threads trying to find a a good write up or some diffinitive answers. Some threads I cant view yet (thread count is low)

I know I should remove the cats., and install a dual alt pulley. Should I use a block off plate for the 5th and 6th port actuators or is there a way to still use them and whats the down side to removing them? The car is stock and there are no emissions where its registerd. Any help would be really appreciated !