I am brand new to the site nad have a few questions. I have searched and found some good info, but wanted some clarification. I have a 64, with a 460 in it, and now it is time to replace the 8" with a 9". What width should I go for, and what wheel/tire size will best work with the factory sheetmetal/suspension? If I have to cut anything, it's getting a four-link w/ coil-overs but I'm trying to avoid that. Any help appreciated.