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I am installing my port matched 5.7l intake manifold and 87MM throttle body on my Challenger tonight. Headers were installed last weekend. I already have a base tune through Hemifever, but worry about running lean on my Fuel/Air Ratio. Should I add more fuel for datalogging and if so, how much?
 

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I am installing my port matched 5.7l intake manifold and 87MM throttle body on my Challenger tonight. Headers were installed last weekend. I already have a base tune through Hemifever, but worry about running lean on my Fuel/Air Ratio. Should I add more fuel for datalogging and if so, how much?
I would get a hold of Hemifever (Sean?) and let him know what's changed since the base tune. He should be able to make adjustments that will protect your motor until you can do some data logging.
 

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Discussion Starter #3
I would get a hold of Hemifever (Sean?) and let him know what's changed since the base tune. He should be able to make adjustments that will protect your motor until you can do some data logging.
Got ahold of Sean Friday and he updated my tune.
 

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