biggest tire under stock fender

[carolinaslim]

hi was wondering if one of these would fit under the stock fenders and if so what extras will be need to get them under the fender.

http://www.usacomp.com/rl1.htm

http://www.usacomp.com/evo2.htm

if so what would be the proper offset and backspace for a 73 super with stock drums and shocks and fenders

Thanks, sorry for all the newbie questions [gotta ask somewhere hope this isn't a problem]

Barry