its tricky mate . you will need timing light , co machine , set co to aroud 3 % set dizzy to 12 degree and mark. set turbo actuater to 8 psi = every full turn 0.8 psi then road test that should be set std then if you want to tune on road you will need boost gauge and afr gauge and make adjustments accordingly for extra bhp EXAMPLE set co 3.5 % dizzy 15 degree on 100 octane up boost 16 psi hope this helps