Hi everyone! Trying to help a student with his pulling truck. We just replaced head gaskets and freshened it up. Also, we deleted egr and intake heater. New up pipes and CAC pipes too. Truck is super last till about 35-40 mph then takes off like a bandit. I've looked and changed a bunch of things but it doesn't seem to change. I have disabled mass air flow and egr. Also shut off egr and intake heater codes. Can someone point me in the right direction please?