Ok, my truck is tuned with efi live autocal now...before it was had a bully dog triple dog with crazy larry. I sold the bully dog but when i put the truck back to stock with it I forgot to reset the stock tire size so the dog is vin locked. I have since gotten the sog back and want to set the tire size back to stock...my question is:is will this affect my truck as far as the efi? My tunes were made from a clean stock file so my first thought is no othee than my speedo bein off a little....thanx in advance!