I have heard back and forth that the TBI motor has a MAF sensor and that it doesnt. I have a 94 Silverado K1500 350 TBI. Now i want to do the "Ultimate TBI mod" from www.tbichips.com and i told someone that i was going to do this but they said it would mess up the MAF sensor, then i asked someone else and they said it didnt have one. So does it or not. Thanks.