i pretty sure there is no compensation in the pfc for VTC angle change. Even with an ecu that does i doubt there is a accurate enough way of yielding quantifiable results ( vtc minimal 20 deg change) with the engine setup you have.
Various ecu's have a nice table for playing with injection timing (usually in degrees), it is most handy for cold starting, idle (especially on big cammed engines) and cruise mixtures but less important as the revs increase.