I will be graduating HS this year. Instead of getting a new mustang, I want to redo mine the way i want it. The outside is almost finished, will be when i get it back from the shop. Its a 6, so im looking to buy another engine, heres my question. What engine has best fitment and performance in a 2000. What will i need, cost, etc.?? I was thinking of getting a 4.6 and a saleen or roush charger or supercharger, turbo somethin. Will i need new shocks to support the weight? What will fit in the bay? I need all information!!!