I will be using my stock fuel rail, stock lines, and stock FPR unless i need to get another one i will keep this. Im gonna run 780cc injectors to achieve around 400-420whp. The kit that im getting comes with with inline fuel pump. Are these any good? pros and cons. Walbro intank? i dont know about fuel pumps... What will i need to run 400whp? and as far as a FPR, how do you know what to set that at? will a tuner mess with that when tuning? thanks.