Barry Conrad
Back in 1987, Barry picked up a Petty Blue '72 Demon 340 for $1,700. After a year of daily driving, he decided it was time to restore his Demon and paint it Plum Crazy. During the restoration, its numbers-matching 340 was rebuilt and reworked to be a strong street/strip contender. Through the years the Demon has done well at show-and-go events, such as the Musclecar Nationals and NMCA events. Demons were only built for two years and Barry's is a real 340 car (most were Slant Sixes and 318 cars). Future plans call for a 416 stroker and a return to the original Petty Blue hue.
Strip Specs
Owner: Barry Conrad
Year/Model: '72 Demon
Race weight: 3,378
Curb weight: 3,210
Engine: 340, .030 over
Compression ratio: 10.5:1
Heads: J 915 casting, bowl ported with 2.02/1.60-inch valves
Intake: MP M1 single plane
Carb/Jets: 750 Holley vacuum secondary, jets No.72 primary, No.76 secondary
Cam: Comp solid flat 529 lift, .254 at .050 duration
Ignition: MP electronic with 36 degrees at 2,800 rpm
Exhaust: 1 5⁄8-inch Hooker headers with 3-inch Flowmasters
Trans: 904 w/reverse manual valvebody
Converter: TCI 10 inch, 3,500 stall
Rear: 8 3⁄4, 4.10 gears
Brakes: F/R: Factory disc/drum
Wheels F/R: 15x6,15x8 Weld Draglites
Tires F/R: 215/70R, 35 psi, G-60, 15 psi
Shocks F/R: 90/10, 50/50
Chassis/Suspension mods: Adj. pinion snubber
Safety mods: Adj. pinion snubber
Interior mods: Stock (black)
Paint: Plum Crazy
Best e.t. prior to event: 12.86 at 106
| Strip Tuning Log-Demon 340 |
| Run/Tuning | Launch RPM | Shift RPM | 60ft. | E.T. @ MPH |
| 1. 3 sec. burnout | 3,000 | 6,500 | 2.17 | 13.45 @ 103.19 |
| 2. 5-sec. burnout | 3,000 | 6,500 | 1.96 | 13.24 @ 102.70 |
| 3. 4-sec. burnout | 3,000 | 6,500 | 2.09 | 13.36 @ 103.34 |
| 4. 7-sec. burnout | 3,000 | 6,500 | 1.87 | 13.10 @ 103.02 |
| 5. 7-sec. burnout | 3,000 | 6,500 | 1.95 | 13.16 @ 103.87 |
| 6. remove spare/jack | 3,000 | 6,500 | 1.94 | 13.10 @ 104.08 |
| 7. Change to 80 sec.jets | 3,000 | 6,500 | 1.84 | 12.77 @ 106.14 |