Bostonian 71 demon

Man thanks that car is rad looks tough as nails! I don’t drive mine on the street as is a 15:1 small block with a filled block and aluminum rods plus a lot of titanium. I also have a very trick black magic clutch and a liberty prepped Doug Nash plus with the 4:56s it ain’t happy on the street.
Well, I have nowhere near the engine/drivetrain combo you have. What size tires are those? What suspension mods, if you don't mind? Do they hit at all?