After trying several different methods this is the quickest and most efficient I've found.
*[UPDATE] 350Mhz found to run stable and consistent on STOCK Avalon 1) Download
https://dl.dropboxusercontent.com/u/16881231/avalon_clone/firmware/openwrt-ar71xx-generic-tl-wr703n-v1-squashfs-factory_20130519b.bin2) Flash this image onto your unit by accessing your unit @192.168.0.100 and going to System -> Backup / Flash Firmware
3) REBOOT UNIT(delete any custom scripts u might have prior)
4) Go to Status -> Cgminer Configuration and under "Chip Frequency" select
350, then SAVE & APPLY these changes
5) Configure your pool difficulty properly(@Slush's pool its 64)
6) HASH LIKE A
BTCEAST
My unit is completely stock and never opened. I keep it in a temperature controlled room. This image will make fans run constantly at maximum.
WILL UPLOAD UPDATE IMAGE IN A FEW HOURSmy specs are:
fan1 fan2 fan32400 3840 3720
temp1 temp2 temp3 24 38 43
Ebereon has confirmed that electrical consumption @350mhz is 720 Watts
I have my overclocked Avalon at Slush's pool for over 24 hours now. At these speeds I believe 10 rounds is about 8 hours of hashing. Also I've noticed that cooling plays a definite almost immediate factor.
HAPPY HASHING