ok I wanna put a Supercharger on my car and i don't know how much HP my stock automatic trans could handle it only has 51,000 miles on it so is there a way i can have it built to handle like 500Hp or Should i buy a new one and if i need to buy a new trans which one should i get. Also how hard would it be to convert my auto to a manual would it cost way more than just buying a new automatic ?