No dice yet since my New Pc4000 ram hasn't arrived yet...
Hints:
Remove completely the 133/166 jumper
You will need to actively cool the Northbridge when you raise the motherboard vdd to achieve the higher FSB. 1.6V is stock but you'll need to go to at least 1.8 maybe 2.0 to get over 220
The best I've hit is 217, but its my ram thats off..
Also think about putting some ramsinks on the MOSFETS, they get VERY hot on the 8RGA+ when you raise the vdd..