1970 Chevy Nova widest 15" rim and tire size questions?

[1970NovaSS327]

Just bought a Chevy Nova and looking to put a 15 x 12 " rim on the back.

I plan on making this a street strip car. I work from home so Its not a daily driver. I will be taking it to the track at times.

I'm thinking of going with a 15 x 3 1/2 or a 15 x 5 in the front and 15 x 12 or a 15 x 15 for the back

I have seen mini tub kits and leaf spring relocation for the 15 x 12 size rims, but it doesn't list tire size.

My questions, I'm thinking of going with 15 x 5 size in front, what rear spacing and bolt circle do I need http://www.jegs.com/p/Weld+Racing/746346/10002/-1

I'm thinking of going with 15 x 12 size in back, what rear spacing and bolt circle do I need to make the rear tires tuck under the quarter panels. Would this kit allow these size tires http://www.detroitspeed.com/productpages/indproduct/rearsuspensionprod/mini_tub_prod.htm

And my final questions what size tire on the rims should I go with, Im thinking of either MT Sportmans or Hoosier
http://www.jegs.com/i/Hoosier/522/19300PS/10002/-1

I want the car to be lifted in the back a little so whats the tallest size tire I can fit unter it, I see them listing numbers like 29 / 29.5 / 30 / 31 / 32.

Anyone with suggestions please comment, I'm up for any ideas that would help my project out.

 

[chevorlet2@attenet]

All the tire and wheal size is not going to help you if you don't know the gear ratio in the rear end as well as the trans.figure out your gear ratio & work from there then you will know the best size to go for.Tub it out if you have to. good luck ,see you at the track.I have a nasty 1963 chevy 2 nova check out racing junk.com this is a hot rod's dream sight.look for me under hotrodjason