Talk about serious. This model has more wins than even we could imagine. If you're a 4150 type of racer, what can we say, this is it! If it's naturally aspirated or light nitrous (350hp or less) this design is the one. It has all the features you could ever ask for in a carburetor.  Machined stepped boosters,  a true race fuel curve (not a corporate design), and a custom multi-adjustable bleed configuration that allows this model almost infinite adjustability. This design flat out works on almost everything. It even sounds tough cruisin' the streets.

Charlie Booze used this model to capture the 2006 NMRA Hot Street championship and became the first Hot Street car into the 8.7 second Zone.  To quote Charlie, "We constantly test other designs from other companies, but the Pro Systems carburetor is the fastest carburetor in our stable. 

(Dogleg booster shown, annular model available.)

The new PRO Series 4150 include these features:

• HP main body
• Available in cfm ranges from 780-1040
• Adjustable air bleeds
• Billet Base Plate
• Balanced drag float (12.5 grams)
• Screw-in jet extensions
• Clear sight plugs
• Stainless plate screws
• Custom sized needle and seats
• Electronically wet-flow calibrated
• Custom "true race" curve
• Live-engine tested
• Techline access
• Wet-flow dyno sheet for easy jet selection