1968 roadrunner question on rear setup

[nazar]

I am going to start working on a 1968 roadrunner 383 car and had a question

Look at this website www.hotrod.com and look at the header, there is a creme roadrunner with some badass black wheels, sitting low

My question was on the rear end and tubbing it. DOes that car appeared to be tubbed? And if so, how do i figure out how much to tub it, and how to go about it? Do i just buy a rear end thats shorter? What happens to the rest of the suspension, do i have to relocate it??

I dont want a huge tub like those drag cars, just enough to clear say a 18x12 wheel in the rear. The fronts I am going to convert to a PTE coilover suspension with tubular control arms, however I have no idea how to go about the rear, but that car looks AMAZING and is exactly what direction I am going in.

ALso, as a bonus, does anyone know what wheels those are? I cant quiet tell

I want the rear to tuck and I know a wheel that big wont, I think the most you can stick under there is like a 9.5 wheel on a 275

I want a 12" wheel on 335s or so.

Thanks guys, cant wait to start working on it, my first project, im 22 Ive been in the import scene for a while building up my 2nd car, 99 eclipse gst with a fuly built motor making 420whp and complete suspension/wheel/tire/trany work but i have always wanted to build a badass hotrod, modern style that handles and goes