yeah its a .64

T28 is flange not size, Efi was suggested to make your 175 kws. Recommended over 1 bar needed. Mild cam grind wont cut it. Doubt your H165 will take a bashing. Im sure this was covered in your thread couple weeks back and still is going

hey guys just wondering how much power you reckon i could achive with my build i have just started, currently my a15 is being rebuilt with e15t pistions, balanced, regrind cam for turbo, bearing etc.....
Running a t28 which will have a new waste gate and be serviced, also running a electronic dizzy, water injection kit, stromberg cd175, turbosmart boost control tee, probs running 10 - 14psi, malpassi regulator, bosh vl turbo fuel pump, xtreme heavy duty clutch, h165 diff, locked!