A/F Ratio: 408 ported dart 225 changing to tfs 245s
03-01-2016, 11:11 PM
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A/F Ratio: 408 ported dart 225 changing to tfs 245s I got a 408 with dart heads,i am switching to tfs 245s, will my engine be lean until i get another tune,i got a 244/248 cam and fast 102/102 compression is 11to 1
03-02-2016, 10:35 AM
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You will probably be close enough at lower speeds while in closed loop, etc for the fuel trims to correct it. You'll almost certainly be lean at WOT, especially at higher engine speeds.
