If you don't want a drag radial and looking for a sticky road tire Nitto NT05 200 tread wear rating like the pirellis ? Problem same for me I can't find the 275/40/20 Anywere backorder 
NT05 Max Performance Tire
NT05 Max Performance Tire
I talked to him yesterday both sets of rears are cut and they were cutting the fronts then polishing and powder coat we should get them next week if all goes well. It's a pain to find tires for this car !I saw your post on the wheels yesterday. I have not heard from Bismarck, but he told me they were going to cut mine right after yours. FYI I ordered a different finish/color.
I have the Nitto DR's on my stock set. I am going to keep those for racing. I really don't like the DR for everyday use. So I was trying to save a few bucks for the first time, reuse the Pirelli tires off my stock backs for my new fronts and put the matching 315's on the new 10.5". We shall see what happens. Discount is researching Pirelli today and if they fail, they are going to look at Pilot Super Sports. I see nothing that works up front, but I will let them think about it. They said another guy with about 600hp tried the Nitto Invo. He immediately wanted to trade them in, not the expected traction FYI.
I may look at the other Nittos, thanks.
Where did u get your NT05 275/40/20 at ? I can't find a pair AnywereI've ordered a set of Nitto NT05's and they make a 275/40R20 for the front. And I'm going with the 315/35R20 for the rear. Both tires are listed at 28.62" tall so they should match up well. I hate seeing a rear tire that's shorter than the front.
DG glad you found your tires mine shipped yesterday should get them tomorrowUpdate, ..... search for them on the Internet several can be found. I have a set of two 315/35R20 P-Zero's on the way to my home!