The Combo-Flo™ –Valve
Conventional solenoids that control the nitrous/fuel delivery place a considerable burden on your engine’s electrical and ignition system. The patented Combo-Flo™ valve and Combo-Flo™ Singles makes Horsepower without robbing Electrical Power!

We have Combo-Flo™ valves for wet nitrous and dry nitrous systems!

Combo-Flo™ products are manufactured in-house on state of the art precision CNC Machinery

Nitrous Solenoid Valves….you know the problems!
• Too Heavy
• Too much current demand
• Marginal Flow
• Jumble of wires

Combo-Flo™ Valves – Invented and Produced By A Racer…For Racers!
Doug’s professional background as an inventor and developer of devices and processes for the automated handling of commercial and industrial products has long been intertwined with his love for drag racing.  He started racing in 1969 in a 1967 big block Mustang at Byron Dragway in Illinois.  In 1974 Doug and his brother installed a Gapp & Roush Boss 351 motor to run C/Modified Production. All the racecars to follow had a Boss Ford motor of some size, hence the nickname "BossMan", and of course wife Cathy became the "BossLady". 

In 1990 Doug and Cathy started nitrous racing in UDRA (United Drag Racers Association) Nitrous ProStock with 632 cubic inch Boss 429 Shotgun Ford.  The Bossman is known by other racers as a tough competitor and a true gentleman.  The racing record of the Bossman Racing Team is highlighted by some notably accomplishments including:

1991 UDRA Rookie of the Year
1993 UDRA ProStock Champion
First UDRA 6 second pass at 200 mph
First 6 second 200 mph pass at Thompson Dragway, Thompson, Ohio
Winner "World Series of Dragracing" at Cordova, IL
2002 and 2003 Outlaw ProMod Track Champion, Sunshine Dragway, Tampa, Fl  
2003 ProMod SnowBirds Winner, Bradenton, FL
2004 OutLaw ProMod Track Champion, Immokalee, FL

Doug and Cathy are proud of the accomplishments of their Bossman Racing Team.  Their most valued prize is the many friendships with racers and race fans that have grown through the years.  When you see Doug and Cathy at the races, just remember, they are the Combo-Flo™ guys!

Racecar as pictured
2004 Mustang
PBRC chassis
773" Ford Hemi
Kaase heads
Four systems of Nitrous using Combo-Flo™ and Combo-Flo™ Single valves (double nozzle, double plates)
Real head lights, tail lights, brake lights
4-speed Lenco
2630 pounds
1/8 mile 4.20/179
1/4 mile 6.40's/215

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