It’s not too often that a hopped-up Ford GT supercar comes across our desk – perhaps that’s because during their four year production run from 2003 to 2006, little more than 4,000  of them were built – but when they do, it’s usually because someone has performed one hell of a drivetrain makeover. We’re talking like quadruple figures in horsepower kind of makeovers here.

On Christmas eve, drag racer Dan Schoneck of Schoneck Composites took his Ford GT for a spin on the chassis dyno, belting out an unreal 1,290 peak horsepower on E85 fuel, and even pulled down 1,259 horses on an E72 winter blend ethanol. With 3.31 rear gears and a 28-inch tall rear tire, this GT only obtained 7,600 RPM and 192 MPH wheel speed to keep the dyno from shutting down at the double century mark. All said and done, Schoneck hopes to surpass 260 MPH in this incredible machine over a standing mile.

In order to create all of that power, Schoneck has stuffed a 5.4 liter, 331 cubic inch modular small block into the rear engine chassis and mated it with an F2 ProCharger, pounding out 33 pounds of boost. Schoneck’s short term goal is to exceed 1,300 horsepower and then put 1,400 right in his crosshairs. And with a new 374 cubic inch mill going together for the GT to pair up with a ProCharger F3-121 blower, improved torque numbers to compliment that insane horsepower shouldn’t be an issue.

Although we’re unable to confirm at this point, Schoneck states that this is the most rear wheel horsepower ever attained with a modular-powered, supercharged street car such as this, and who are we to argue?