the 1uzfe comes with 10.2:1 from the factory...in the older ones, slightly higher in the newer ones, 10.4:1 i believe.... can't really do much with the timming. idk if the q45 throttle body would even work on the car..its not much bigger if it is at all, and i dont think the tps will work. i would definantly port match everything and free up intake and exh. untill you go FI