Hello from S. MS. Own street rod w/LT1/700 R-4 all stock I think. Not very familiar w/FI and it's sensors in 1993. Car is doing good but just realized this engine does not include an IAT or MAT either one.IAT is stock for '93 right. Again all equipment is stock that I can Tell. Shoud I add the MAT or IAT. Have found wire in plug 3 for this sensor. Please add any thoughts you may have on getting this '93 EFI just right!!!! Thanks kenb47