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The Motor Company put years of development into the Evolution engine. One of their goals was improved volumetric efficiency: getting more power and less heat from the combustion chambers.

They were partially successful. A few shortcomings remain, like the poor ratio of exhaust to intake air flow ratio.

My Super Flow porting process increases this critical air flow ratio from the stock 78 percent by a full 10 percent, resulting in a power increase you can feel the moment you twist that throttle.

Our replacement valve springs will reduce friction; Dual Plugging will eliminate detonation you may not even be aware of;  our Hydraulic Lifter kit will improve volumetric efficiency; and our Super Port Flow process will increase power.

Evo Big Twin with Super Port Flow

See the Data Sheet

See the Graph

Articles by Perry

Ask Perry about Your Hog

SCROLL DOWN FOR DETAILED PRICE LIST
 

Evolution / Big Twin Price List Links   

Click any item for a detailed description. Scroll down for prices.
PARTS SERVICES
Click any menu item for a detailed price breakdown.
Cylinder Heads Super Port Flow
FlowMaster Cams (Indexable) Dual Plugging
FLO Valve Spring Kit General Port Work
FLO High Flow Valves Cylinder Head Machining
FLO Pushrods Repair Work / Welding
FlowMaster Cam Kit Cylinder Head Painting
Hydraulic Lifter Kit w/Pushrods Kehien Carb Blueprinting
Kehien CV Carburetor 40mm
(like new)
Lower End Rebuild
Kehein Intake Manifold Lower End Machining
700 CFM Air Filter Kit Transmission Overhaul
Thunderjet Kit Installed
(racing only)
Clutch Overhaul
Power Arc Ignition Kit Dynamometer Test & Tune
Dual Plug Ignition Kit Flow Testing
Dual Plug Wire Kit (single rife)  
Dual Plug Wire Kit  
For credit card orders, add a 5% handling charge.
   

2000-2014, FLO Headworks. Contact Perry Kime at 805-481-6300 or via e-mail.
FLO Headworks, 1150 Pike Lane, #2, Oceano, CA, 93445.
All rights reserved. All prices subject to change without notice.
FLOHEADWORKS.COM and Perry Kime have no affiliation with Harley-Davidson® Motor Company. Trademarks and model names are the property of the trademark holders.