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1967 Chevrolet Chevelle

Meet Brad Johnson and His '67 Chevelle. Sure it has a big parachute and 'cage; we still think it's street legal.

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Tech Notes
Who: Brad Johnson

What: It's a '67 Chevrolet Chevelle that made 767 hp and 689 lb-ft of torque on the dyno at the Car Craft Summer Nats.

Where: He's from Oregon, Wisconsin, not the other Oregon, where the Ducks live.

Short-block: Brad has an engine builder, but when he explained what he wanted, his builder sent him to Scot Shafiroff engines for a street version of the 540-inch Sportsman engine with 10:1 compression instead of the usual 13:1. It still uses the same 4.250-inch Callies DragonSlayer crank and 6.385 rods but is built around a GM block with a 4.500 bore instead of the Dart block that is now standard.

Air goes in: The 540 uses the aluminum Dart 345 Pro 1 head with CNC-ported combustion chambers, bowls, and turns with a Dart intake manifold. The 1050 Dominator was prepared by Shafiroff and was included in the combination.

Air goes out: Bob Fuller built the 21/2 -inch primary headers so they can be broken down and taken apart for service.

Transmission: This is a street car, yet it has a TH400 with a reverse-manual valvebody built by Christian Bros. in Belleville, Wisconsin. The converter stalls around 5,800, but Brad convinced us it is fine for the street. "I get into that issue with people all the time," he said. "It's really no problem." It has a transbrake, too.

Suspension: The tube chassis was handmade by C&F Race Cars with a four-link rearend, Wilwood disc brakes, and adjustable coilovers.

Interior: Such that it is, the stock seats and carpet were retained to keep the car feeling comfortable. Everything gave way to the sheetmetal dash and 'cage.

Wheels: The bigs are Weld Alumastars with M/T Sportsman 31x18.50-15 tires, and the littles are 20x7.60-16 M/T Sportsmans.

Nitrous: Get this, Brad didn't think the engine compartment looked full enough, so he sent the manifold to Performance Engine and Machine in Madison, Wisconsin, for an NOS Fogger setup complete with a nitrous timer. With the 250-shot, it runs low 10s spinnin' street tires. Off the bottle with slicks, it runs 10.30 at 130 mph with a 1.55 60-foot time.

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