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Hey guys I have a 92 vert with a on3 kit, tfs heads 170's, cobra intake,all supporting fuel upgrades my question is where should my A/F ratio b at idle, wot and cruizing speeds?
 

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at idle and cruising you can get by with over 14.0. under boost a safe spot is around 11.5 but could be different depending on your timing and boost level. you dont want to go below 10.5 but really dont want to go above 12.0 under boost
 

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Mine is 14.7 at idle.. crusing around NO boost in the 13's-14's in boost down to 11.2 area....
 
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