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WOT Air/Fuel numbers?

M
Sep 16, 2008
95
21
8
What kinda numbers are you guys running? Im running a ET 900 with d&d twins. Its so rich up top that it wont even pull consistent rpm. A/F says low to mid 11's. But after a while it does creep up to 12.

I remember Dynotech jim telling me to run around 13 crusing around and 11.5 WOT. Seems like some people on here are running even leaner wide open. What do you guys suggest? I dont wanna melt a piston, but im pretty sure i need to go leaner.

I know i should be checking plugs and everything but I need to get it pulling somewhat consistent rpm before fine tuning. Any advice?
 
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