Anyone got some recent info on NOS on any A series Engine???

What kind of info you need? You buy the kit and install it. A 25 HP-shot should work well.

Datsa73 runs nitrous.

I have a supercharged setup going on with a ported A14 head-A12 block and mild cam. Wondering if anyone has any power figures that are recent. I have searched archives

Make sure your A12 is built before you shoot any juice into it. As DD stated, a 25hp wet shot wont hurt anything but it must be wet. If your adding a supercharger, rethink what you are doing.
I ran a built A15 for a few years with both nitrous and a supercharger. I finally killed it a couple years ago. Put a rod through the block. Never had it dyno'd but the shot alone was 100hp. Now a days for me, I try to keep things more under control. Im boosting 5psi through a Z24 with a 50hp shot of wet NOS. The supercharger is the power. The NOS just adds a little xtra. Fuel pressure and timing all must come into play.
Do it right the first time or pay later.
A12 built supercharged with 25hp wet NOS is doable. Factor everything in.

Is your supercharger set up going to be drawthrough or blowthrough?
I fitted a wet fogger to my supercharged A15, but I never got around to actually pulling the trigger on it. Then I puled the engine out to do a repair, and never got around to refitting the kit.
If you're running a drawtrhough set up, mount the fogger between the carb and the blower. Then you'll be able to harness the cooling of the liquid nitrous boiling into a gas, which will give you a nice spike in charge density. And a power increase greater than the power of your shot.

Bart is correct. I also use the nitrous to cool my supercharger.

thanks for the feed back, supercharger is draw through with methanol injection as well so intake temp should be nice and cool.. i was thinking a 50hp shot to start with....

Is your A12 bottom end stock? Rule of thumb is adding no more than 75% additional hp on a stock motor. This is being conservative so you don't make a mess of your motor. So figure your numbers.