I'm ordering a 8 inch Rize lift on Wednesday after they re-open. Does this kit come with install instructions and do I have to cut anything on my truck?

 

I believe it does come with instuctions.......and yes I do believe you have to do some minor cutting....

 

they just did an install in the Winter 2007 issue of Ford Performance Trucks Magazine page 76. you need to modify the crossmember bracket and trim the corner off the lower bumper valance. i think they have instructions of their website too. heres the link.
http://www.rizeind.com/06technical/tech_instruct01.html