Limits on carburetors / ignition

David G

Well-known Member
I am working on a fuel injection system for my older tractors and wonder if it could be used for pulling. Are there requirements against this? The nice thing about this is that I can control the fuel and spark curves. I can also add a knock sensor.
 
Updraft refers to how the air flows so I always thought use a updraft carb for the air and inject fuel . Should work right into the grey area for at least one year.They are alot of grey areas in most antique pulling rules just got to work them for yur particular advantage.
 

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