2.2 ecotec cav , computer is 2.2 eco still , block is 2.2 bored out, and everything else is 2.0 , all fully built

not sure what pulley and injectors plugs to go with ?

i was told to watch out for , KR's , it running lean , or injectors being maxed out...with wat i have now , stock 2.0 injectors and 3.0 pulley . but im good

just upgrading to get more power ...suggestions, whats safe to run ?