i use a t34 with 0.48 t3 hot and dash 23 0.60 t4 cold , although laggy its a lot easier at launch than my old straight t3 o.48 hot and 0.42 cold , which just spun into third.
awesome power at the top , but i have picked up surge under load in 4th and 5th gear - figured its down to the restrictive efi throttle as my previous setup with the sidedraughts didnt have this issue. currently have a 70mm throttle in mind with trumpets which i will bolt to the lower half of the efi manifold
recently made 153kw and 285nm on a syno day , this is without having the motor set up , pure road tune with a egt and an af meter. should see about 180kw atw when sorted