TuneboyLIVE doesn't pull fuel before the limiter, I have a log from yesterday afternoon, banged the limiter, still registered 13.1 afr.
Pretty certain this is why the Carp kits require both Tuneboy and PC-V, so they can get the last 20% duty cycle out of the stock injectors, as I understand it PC-V modifies the signal already present so the ECU may cap out at 80% and PC-V will use that plus the % increase you've entered in the PC-V table to reach 100% theoretically.
@Neville Lush - What twists my mind in knots though, is that 360cc injectors are supposedly compatible with the carp 240/265 kit with no fuel pump/pressure/injector mods, just tuneboy and PC-V. Can't wrap my mind around it. Only thing i can think of is that someone isn't telling the whole story, like perhaps the stock triumph fuel pressure isn't 43.5 psi but the injectors are rated at 360 at 43.5?