Why return the fuel to its original setting ? When the truck is telling no like too much , turn it down a smidgen and go for a run . Keep doing it until your happy and the trucks happy and that's you at your max setting .
A high flow air filter might allow you to turn fuel up another notch , an exhaust another notch . The hardest part i found all along was keeping the fuel air mix right , fuel won't burn without air so too much fuel not enough air just drowns it .
You have your max setting on fuel so move on to boost now , i've read loads about this and learned to ignore wild claims of people boosting at like 21 psi , if they did it they must have replaced all the rubber pipework with welded on steel right before they blew up
![Rolling Eyes :icon-rolleyes: :icon-rolleyes:](/custom/images/smilies/pack2/icon/rolleyes.gif)
14 psi i settled on as a safe max .
The sensors are a problem , i was never happy with my fuel air mix and constantly fiddling with it because i couldn't get it right throughout the rev range (it seemed to lean out at higher revs) until it dawned on me the sensors are connected to the ecu and on my truck the fuel pump is controlled by the ecu . I moved the sensors up to my retrofit intercooler (which is off another 90 i think?) and slap my ass and call me Sally if it didn't just tie everything in together perfectly .