Do all 95 1.6 Sentra's come with the NVTCS?

I am getting myself a 95 Sentra with the 1.6 and the 5 speed tonight. While doing some Googling, I read that many of the 1.6's had the variable intake valve timing control. Would this Sentra I am about to buy have it? How exactly does it work?

The system is cam phasing for the intake side, which means it advances or retards the time the valve opens and closes. From what I know all USDM GA16s have this feature.

they all have it yes...