As Claymore said, in 2-3 days. Don't await miracles.

I get about 85 - 90 on mine.  Overclocked to 1125 1500 power -15 in Afterburner.  One runs at about 80C and the other around 70C (I have it set as -tt 80 - tili 85 -tstop 90) and the fan runs about 60% (I want to improve my cooling, but it is very stable right now).

So, it sounds like you are in the ballpark with 87 per card.

Yep, it's true: 175-180 h/s. And no mods, only overclocking (1180/1500 for me).
BUT, there is a downfall:
ETH mining, v 7.3 - 845W from the wall on 4x280x
ZEC mining, v 7.0 - 915W!!!

Got my rig running again on v7 I swapped riser and installed drivers again for my older cards and bingo running stable right now. All stock unmodded (that I know of) 2 r9 280x at 168 each and 2 r9 380 at 118 each for total about 570h/s
Not sure on power usage I don't have a watt meter

1) What (TH) do you mean with "the code" and "crypto transactions"? The communication with the wallet/pool? What should, for example, flypool do with this sent extra information? Do you have any idea how mining works?
2) Everybody should and can have control over any traffic inside and leaving his network if he wants. But many just don't care (enough)...
3) Start with using packet capture like Za1n suggested.

anybody with 290x Shapphire bios mod ?

Another (less safe) way is to restrict the particular program's access to all resources it doesn't require by using proper access permissions and software like Sandboxie.

How is power/Solves for somewhere in the middle?  I think they can do like 280Sol?  What would power be for say 250-260.

Claymore is a freakin' God. His miners just keep getting better and better!

As of 7.0

Powercolor R9 390 - 215 Sol/s

All my 380's - 105-110 Sol/s.

Only thing is on one of my rigs, having a weird issue with GPU utilization, not sure why, but no big deal. Thanks a lot, Claymore.

P.S., sometimes I do get an issue. "Miner thread hangs" and the miner needs to restart, especially on ethereum. Only happens on one rig, but it also happens with this Zcash miner as well. I was thinking maybe a memory module in one of my cards is going bad, but I really can't prove that one way or another... It does make mining ethereum impossible, but Zcash runs for a long time without crashing, so that's still okay for now I suppose.

Crossfire has to be turned off. Do that with the Radeon Settings under Games.