I know this isn't directly related to the site, but I thought these hillclimbs at Nationals were pretty impressive (on a 1428 KZ built motor)
Devin
78 kz 650 custom
Wiseco 720cc big bore
Dynajet stage 3 carb kit with pods
2002 Kawasaki Z750 exhaust
2001 Buell lightning front end
1999 Ninja 600 swingarm with 1999 Ninja 900 rear rim
converted to monoshock rear
Too many goodies to list fully