I'm doing some upgrades,I have a 1992 GT. with GT40 intake, 70mm maf, 65mm TB., headers, h-pipe, in each ones opinion, which is the best (plug-in) ignition system out there for a '92, where there's no cutting of wires involved.I was reading a review on the jacobs pro street ignition kit and it wasn't too good.Thanks...

 

You should try taking a look at MSD or Crane. Maybe even Mallory. Ive never heard bad things about them and they have very good reps from what I understand.