OK, black mamba1, here's some info that may help you. But first, you must really decide how you want to use your car, then set it up accordingly.
I run Kumho Ecsta V-700 tires on the back of my black 2004 Paxton SRT-10. These are mounted on 18-inch HRE six spoke race wheels. These tires will out handle PS2's in the turns and in the straights by a long shot. They cost a bunch less too. While they may not last quite as long, they are worth the traction. They are OK in the rain too. If these tires were made in 19 inches, I'd buy them but unfortunately, there is nothing like them in 19 at this time. Call JonB.
The engine in this car is now 530 ci making 925 peak rwhp on a conservative "pump gas" 91 octane tune with only 11.5 lbs of peak boost. I also have Motons, a Quaife, a spec stage 3+ clutch and 1000 hp CV 1/2 shafts. Torque is just over 800 at the wheels and is about 630 at only 3000 rpm.
These are some extensive mods I know, but I can get the power to the ground very well on a smooth road / warm day. I have not run this car at the drags yet, I'm still sorting out things like motor mounts (Woodhouse poly going in now) and AEM drivability issues. I'm not a big " 1/4 mile drag guy" as I don't think it's a very good representation of how fast a car really is. I prefer longer races and do a bunch of road racing with my GTS.
If you were closer, a demonstration could be arranged. I do have a Racelogic Performance Box (a GPS based lap timer that also times 0 to 60, 0 to 100, 1/4, etc.) and have done some testing. My best time 0 to 60 sliding the clutch is 3.0 seconds on the Kumhos all in first gear, which isn't too bad for a rear wheel drive car at this power level. Let's just leave this as I really waste 500 or 600 rwhp cars by the top of second gear.
When I get the car back from DC, I'll do some 0 to 100's and 1/4's. It's a very strong car and power isn't the issue. I've had some problems shifting at this power level due to the torque twisting everything.
In a roll on race, this car is unbelievable (except maybe to the twin turbo guys). Most of the folks that want to ride in it end up screaming "enough" or "stop" or "no more". Some get nauseated.
Once you go over to the "dark side" with a high hp Viper, it's hard to come back.
Dan