Rb25 Water Lines Help

[Stargate]

Hey guys, just need a bit of info. I tried the 'search' option but didnt find an answer to my question.

The water line that goes into the Block on the exhaust side near the back of the motor, is that a feed or return? I got new manifld(s) with a Tial watercooled gate and need to setup the lines for the turbo. I have ran the water to the turbo from a nipple not far from the thermostat housing and the return to the back of the block on the inlet (heater pipe or something). Will post up pics later.

Any help much appreciated.

Thanks