Not Ranked
Tuning capabilities
This is with regards to your question about how tunable the efi system is. It all depends what system you get, what PCM and what type of program. But if you get a standard A9l with a tweecer/QH or be you can control evrithing you want and more. Afr spark injector timing desired rpm and On and on. What afr is ideal depends on the state the engine is in, idle pat throtle or wot. It can range from 12 to past 14.5 and leaner.
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