I dont even know if i should say this but I have now been driving my ls1/4l60e swap for a few months with a bad MAF. I dont know if its the Granatelli or just proper MAf. All i will say is that the car moves now. It is quick in any gear. I dont want to say the cars i have ran against mostly from 50mph+ and upset sum and left others asking questions or thumbs up. I mean cars that i thought i was out classed by. Really shocking me daily as it is my daily driver. Oh and is stock. (the real stock)Anyone else feel me?