99lolagt

I got 112000 on my 99 gt right now. I change the oil every 3000 mile with ams oil and dont beat on her everywhere i go. I was wondering if it would be safe to put a supercharger on it now or get her some new slugs,rods,crank etc and build a 5.1 first? Ill build the motor over the next few mounths if i go that route. Thanks for the input.