new race/street duster

They are 295 65 15 drag radials on a 15x9.

wow very cool looking car you have there. what is the back spacing on your wheels and what all did you have to do to get them to fit? I am building a 73 big block duster and would like to go to that size tire if i can do it with out moving the springs in etc. again great looking car you have there.thanks Mopar65