If you're going circle track or road racing, there are a lot of anti-siphon modifications and custom fuel curves required for sharp response and drivability (the key to winning).

In 2006 Kelly Bires used one to win the ASA Stock Car Championship.  

This carburetor series has also set the fastest qualifying spot at the Rolex 24 hour race.  The Derek Bell driven corvette surpassed performances by the Daytona Prototypes, Ferraris and Porsches at the event to grab the number one spot to the shock and dismay of series promoters.  

Tom Sloe followed suit by recording the fastest lap by a GT-1 car eclipsing performances of the fuel injected Trans Am class Jaguars.  

Proving once again, that carbureted engines are king when it comes to making horsepower. These carburetors are fully prepped and ready for action. You won't believe the throttle response and "driver feel" this series offers and best of all... you can bolt it on and go racing.

The Blaster Series 4150 carburetors include these features:

• HP main body
• Available in cfm ranges from 780-1040
• Adjustable air bleeds
• Billet base plate
• Adjustable throttle response (compensates for track conditions)
• Built in alternate calibrations
• Electronically wet-flow calibrated
• Road race or LH floats (your choice)
• Clear sight plugs
• Stainless plate screws
• Custom sized needle and seats (titanium on alcohol models)
• Stepped boosters
• True race fuel curve
• Live-engine tested
• Techline access
• Wet-flow dyno sheet for easy jet selection