Tubbing my Duster questions

Ok fellow Mpoar nuts, I need some help. I have a 71 Duster that I drag race (360 stroker, bla, bla, bla). I'm switching over from a S/S leaf suspension to a coil over/4 link suspension. The car was running in the low, low 7's. I recently upgraged the engine (before being deployed to Iraq) I'm sure there will be some issues with it hooking up (my calculations put it somewhere in the mid 6's with the upgrades). I am trying to get everything ready to do a swap when I get back home in a couple of months. I currently have 10 inch slicks under the fenders.

Now here's my questions:

1). What is the maximum size tire that would fit under the fender if the car was mini-tubbed?

2). If I do a full tubb job, how much room will I have between the fender and the frame rails (total inches)?

3). If I did a full tub job, what is the maximum tire width that would fit under the fender?

4). If anyone has done this modification before, what was the overall length of the differential if the frame rails to fender dimensions were opened up (using a coil over/4 link set up)? Approx. length is all I need.

I plan on going with 15 x 32 inch slicks. I know that I'll have to set the differential back some due to the tire diameter. I'm going with a Strange Engineering Dana wita a disc brake set up.

 I'm at kind of a disadvantage here in Iraq. Only having 30 minutes of access to the internet a day, I need some help researching the measurements and dimensions. Any help would be greatly appreciated!

        Thanks!

           Frank

Mopars Rule!  

I race a 68 cuda, I moved the springs in and sectioned the rear wheel wells with a 3inch section of sheet metal, so the wheel wells are stock diameter but now 3inches flush with the rear frame rails, now my 83/4 housing is narrowed so the wheel on the car now is a 15x10 with 41/2 backspacing,and I run hoosier 29x12 slicks with a 92 circumfrence, the car is all steel,weighs 3400lbs with me in itand a bigblock with aluminum heads,the car 60fts 1.36 to 1.39 depending on air quality,very consistant 10.0s quickest is 9.92@136.12
I am building a 1990 daytona tube car right now, S&W 4link and S&W strut front end, the car is rolling now, man that is a job!! If you go the tubbing route I highly recommend S&W kits, top shelf plus the tech supportif you have questions,I race with those guys they race the products they sell every week,
for what you are looking to do though,12 inches of rubber is plenty...