With 704 RWHP - you're only running 12's? I don't get it - you'd be running 13's on a stock Gen IV if you're only running 12's with 700+ RWHP.
Jamie Furman ran a 10.92 on a bone stock (factory tires) 08 Vert...and that's only 600 Crank HP...
Furman holds almost EVERY possible record there is for stock american production cars in the quarter mile and probably is the BEST drag racer in the country running stock tires.I honestly dont know how you can handle these things with Twins , my stock (only corsa Catback) 09 ACR is goes sideways at 4k + rpms in 1st and second gears on most surfaces !!
The difference being Jamie (Furman )ran 10.9 in a totally stock 08 Viper(stock tires ect ) the 10.8 was run with bolt ons, slicks and nitrous .MKB69Viper's signature is "2008 SRT10 Vert - 10.86 @ 128.29mph " but he obviously sold it and I think it wasnt an ACR
http://forums.viperclub.org/dyno-results/613726-08-viper-headers-150-shot-nitrous.html
The computer,exhaust and headers are good. The gear change is for personal prefference. No real gains from the 3:55's but more fun to drive.
From a roll in second gear the supercharged car still feels faster. From a dead stop on the street the Gen IV is probably quicker. Due to better traction.
The difference being Jamie (Furman )ran 10.9 in a totally stock 08 Viper(stock tires ect ) the 10.8 was run with bolt ons, slicks and nitrous .