First...read this:
https://www.tamparacing.com/forums/t...icerocket.html

the if you still are thinking about doing it...ask this same question here: http://forums2.freshalloy.com/forumdisplay.php?f=12 so that other skyline owners may let you know the deal

and if after that, you still want to do it, be my guest....but at least you will be informed.