First, like everyone else said, get a shop manual. Best $50 you will ever spend on your bike. I agree with the cam timing thing. The best way to fix it is to take the four cams out and line them up from scratch. You'll have to take the rocker tops off so you can pull the pushrods out; you won't be able to get the cam shafts under the tappets unless the rockers are off the top of the pushrods.
Before you take the rockers off, you'll have to take the gas tank off, too. Anyway, it's all outlined in the manual, but if I'm correct: gas tank, rocker tops, pushrods, cam cover, cams. Line them up, put it back together in reverse order.
The book will tell all, give you a picture of the proper alignment, and give you the torque specs when you bolt it all back together.
Try surfing here:
http://www.sportster.org/tech/
and here:
http://www.nrhsperformance.com/tech_xlcaminstall.shtml
ps One last thing, just to see what y'all think. See the shaft that sticks out below the four cams? I can't remember what it's called w/o the book, but after I pulled my four cams, I put an adjustqable wrench on it and turned it to line it's dot up and start my lineup based of it. Good technique??
pps Don't try anything without the manual, and don't do it just 'cause someone said so.