Art Morrison C-5 IFS

[novanutcase]

Hey All! I'm building a '66 nova and have been going round and round on the suspension issue for some time now. I had finally decided to have Wayne Due do a full chassis for me but that doesn't look too likely now that his shop is closing. I am also considering Art Morrisons C-5 IFS but Kevin Kosier is telling me that it won't work and that I should go with their own brand of IFS. As much as I'm sure theirs will work fine I just love the way those C-5 Control Arms look and I would really like to try and get them to work. Here is what I am figuring and please tell me if I am in error anywhere in my calculations. Car will be low, probably around 5" at its lowest point. Don't want to bag it. Wheels I would like to put on are 18 x 8's with a 245/18/40 BFG KDW on the front. AM makes a C-5 clip with a 57 1/2" Hub to Hub. I figure with the backing plate and disc brake plate it should add another inch on each side bringing total width to 59 1/2". With the 8" wheels I'll probably backspace it 4 1/2". I figure the center section of the rim will add another 1/2" on each side bringing the total track width, including wheels with backspace, to 66 1/2". The ID fender to fender is 70 1/2". This should leave at least 2" between fender and wheel. Isn't this enough to still have a decent turn radius? Why is Kevin Kosier from AM telling me I will have rubbing issues? Can anyone explain? He says one of the factors is the shape of the opening of the wheel well on the front fender of the '66-'67 models. Anyone?