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Discussion Starter · #1 ·
I just bought a 2001 Pro X 440 and need some answers.
It has a 2 position key for 92 or 110 octane gas , also it has a switch under the hood with ABC ect. What is this for? It has a prob in the exhaust expansion chamber, What is it for? Can I run leaded avgas in this thing? Jetting? Shift RPM?
If somebody can answer these questions or send me to a site that had tuning info that would be great.
Thanks
 
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