ok so right now i have a phat shaft 62/65/12 and i am very happy with it so far. the original plan was to twin it with a s475. but now im considering switching to a silver bullet or ed's better bullet. i never tow and but i do still daily drive it untill i can something else then the truck will just be for fun. just trying to get some opinions on what to do. im looking for to get around 650-700hp eventually. and spray is always a option if i need it to get me there. thanks guys.