1999 Chevy Silverado

Hey, this is my 1999 Chevy Silverado 1500 LS, currently this truck is very stock, I was thinking about either engine swapping or doing a supercharger, because I currently have the 4.3 L V6 and want to make more power, also for looks wise any good bumpers out there or front end bumpers that you would recommend or headlights or tail lights???