Basically you have to connect your hydra VTCS pin to one of the VVT solenoid wires. I have no clue what the solenoid wires are but I am guessing it's 3 wire:
Jeremy has the Hydra pinout. If yours is the same as mine, the VVT signal output pin is A11 on the small blue connector. Your harness may already be set up and if it's not, then you'll need to order some pins from Jeremy.
Anyways connect them bitches then
Go to Output Configuration
click PWM 2
Make sure PWM MAP 9 radio button is selected
input x rpm spread %
input y load spread %
Then hit ok or whatever
Then go to Select/3D PWM/PWM Map 9
That should be your VVT map.
Also here is the 2.5 manual and it talks about it more:
I actually have the VVT retrofit stuff as a document, email me at work & I can send it to you. Same for TPS if you're coming from a 90-93 chassis, and 94 alternator retrofit if you're tired of your NB voltage control..