I stopped reading after I saw this:
"Since when is 12.90 a 13 second car. I trapped at 114 w/ just an intake, if you dragraced alot (I don't know maybe yo do) you'd know that w/ some drag-radials thats good for a high 11 pass. I choose not to powershift or slip the clutch out of the hole. You've got me on the oil... that does ****, but it's getting fixed!"
He owns a Z06 with bolt-ons and only bagged 12.9? 114mph proves the car has some power, but 12.9 with that says to me he doesn't know how to drive yet. I owned a 2000 C5 coupe and dragged it with the body panel on (track wouldn't allow the lighter lexan top), an extra 30 pounds of electronics installed and my then heavy hide of 235. Bear in mind that there is also a weight difference between the Zog and my Coupe since the Zog had lighter internal parts, windshield, floorboards, exhaust and roof parts.
The only mod on my coupe at the time was a pair of Borlas. Off a 1200 rpm BABY launch (wasn't looking to rag out my daily driver) and without any abuse to the clutch I pulled a 13.01 @ 109.52 on my second run. I do NOT consider myself the best or hardest driver in the 1/4, but man was I ripped that my best in four runs was .01 away from the 12s! On the others I was trying different gears at the end of the track and had one sloppy launch. That is my entire experience with official dragstrips.
I suggest he find someone near where he lives who has the seat mod and who would let him drive the car a little before he makes the decision. I test-drove a modded NSX once and my whole impression of the car was skewed because I hit my head getting into it. Give him a second taste of the venom so he doesn't slip back beneath the surface here.
Vette guys compare option codes, hood liner graphics and mufflers. Viper guys compare Twin Turbo kits and ******* stories. Only once was there a Viper owner who matched well with Vette guys, and he had dolphins on his hood.