I'm running COS5 and just curious if there is anyway to change timing on individual cylinders because my timing strap comes out different on some cylinders than others when I check the plugs after a spray run and would like to get them all dialed in to optimal, thanks for any help guys!

If we can't do it with the stock computer, can I use like a MSD 7531 box or something like that with the stock computer to control timing?