You'll understand afterwards but anyways back on topic the zg flares wont really be able to handle ten wides youll have to play with offsets a lot id look into the bamf zg flares there more expensive and there wider. there like 3 in. in the front and 4 in. in the rear. Id also get re-speeds's camber plates theyll help you tuck em in a little better if your wanting to run a decent size tire up front and running the regular zg's.
http://www.zforceproductions.com/ind...d=15&Itemid=56
Onto the cutting part the fronts are easy but the rears aren't as fun this is the write up i based mine off of
http://www.rx7club.com/showthread.php?t=721349