you worked for all the bolt ons and the car? or did mommy and daddy give you the car.
If it were me i would forge the motor first, because once you put the procharger on you are going to want more. Also, im pretty sure you looked into the procharger kit correct? i think they are around 5k right? Now most 19 year old i know dont have great paying job to where they could afford to pump out this kind of cash, and still pay your car not, insurance etc etc. Also remeber that the supercharger will need supporting mods which will add up quickly. SO when all said and done you will be looking at closer to 10k with supercharger and labor and much much more with a forged bottom end