I was able to tweak my afterburner settings and position an external fan on the box and now I have GPU 1 at 70°C and GPU 2 at 63°C respectively. GPU 1 is at 121% power and GPU 2 at 122%. Both are at 99% usage.

I have the following flags on my bat:

-H 1 -i 0,0 -C 1,1 -l K14x16,K14x16 -D

And afterburner set to as follows:

Core Voltage: +100 mV
Power Limit: 114%
Core Clock: +125 MHz
Memory Clock: +530
Fan Speed: 100% when temp over 60°C

Getting total hash rate of 600-630 khs. I seem to have struck the right mix for Cuda and the GTX 600i.