Ok, so let me start by saying i know i need to get my car properly tuned, but money is tight right now. My setup is a y7 block with a ported and polished z6 head, arp studs, y8 head gasket, rebuilt 16g on 8lbs, blox fmu, ngk bk7re plugs, stock wires, stock injectors and a p28 ecu. My problem is that once i get to around 5lbs my car starts to hesitate and the cel comes on. It makes my idle go up and down but once the cel is on the hesitation reduces. The cel goes away after i turn my car off, but im wondering what is causing this hesitation. Any help is appreciated!!