Randy Johnson, 39
Kewaskum, WI • '70 Chevy Camaro
Type: GM LQ4 small-block stroked to 402 ci
Block: factory 4.000-inch standard-bore iron block
Oiling: stock pump and pan, Canton Accusump system
Rotating assembly: K1 4.000-inch forged crank and steel rods; Wiseco 9.4:1 pistons
Cylinder heads: ported GM L92 aluminum castings
Camshaft: Howards 224/242-at-.050 hydraulic roller, .578/.612-inch lift, 115-degree LSA
Valvetrain: Howards valvesprings, retainers, and pushrods; Wegner Automotive rockers
Induction: Magnuson TVS 2300 supercharger, stock drive-by-wire throttle body
Ignition: stock
Fuel system: Rick's Hot Rod Shop gas tank; SX pump and regulator
Exhaust: Hedman 1.75-inch long-tube headers, custom 3-inch X-pipe, Stainless Works mufflers
Cooling: stock water pump, Be Cool radiator, SPAL dual electric fans
Output: 623 hp at 6,400 rpm and 606 lb-ft at 3,800 rpm (rear wheels)
Built by: Wegner Automotive
Front suspension: Heidts Pro G subframe assembly, 2-inch drop spindles, and control arms; splined sway bar, QA1 coilovers
Rear suspension: Heidts IRS assembly and upper and lower control arms; QA1 coilovers
Brakes: Baer 14-inch discs with six-piston calipers, front; Baer 11-inch discs with four-piston calipers, rear
Transmission: Tremec T56 Magnum six-speed trans, Spec twin-disc clutch, Hurst shifter
Rear axle: Heidts independent rear suspension with 31-spline axles, Detroit Truetrac limited-slip differential, and 3.70:1 gears
Wheels: Forgeline FS3P 18x9, front; 18x10.5, rear
Tires: Nitto NT05 275/35R18, front; 295/35R18, rear