Is there a table in a 02 Z06 file that will retard timing when nitrous is activated? I think I have read of one in the custom operating systems but I want to run my stock system. If there is not one, does any one know if there is a piggy back system that will do it? On my 91' Z28, MSD made a timing retard box that spliced into the system. If figured with technology the way it is now there may just be a table for it.