So I'm moving everything 1" forward

[zippeay]

I have 64 C10 that I'm Zing. I've searched and search... and searched... I know I've read that a lot of people move the frame 1" forward when they are Zing. I understand how to do that, however do I cut a 1" section out of the front horns when i drop the Radiator support area also? I'm just trying to make sure I don't screw this up... I apologize if this has been covered but I've searched here as well as other forums and I can't seem to find the answer.