Hi everyone. Have a 2011 6.2 Raptor that we installed a Stage II Whipple kit on. The truck is currently at the dyno tuner getting a custom tune put on. The tuner called me and stated that the truck is going lean above 3500 rpm. He has tried everything computer-wise, we also swapped the fuel pump and fuel pump driver and still no go. We checked to ensure the correct injectors were installed and they are. I have an email into Whipple but wanted to check here and see if anyone encountered something like this in their trucks.
Thanks
Thanks