How quickly did your ped loose power?
Have you checked the timing.
Have you checked that the carburetor slide raises all the way?
btw, you are the first person I've noticed on this forum who confessed to drilling a jet and did not get stomped (advised that it was a no no). I think we are awe struck by your macro aproach to ped mechanics. Personally, I keep waiting for you to graft a VW cylinder and piston on to your ped.