Quote Originally Posted by andrewb70
Stock LS1 EFI systems do not have a vacuum referenced FPR. I would disconnect the line. At the very least spend the money on a mail order tune and stop being ocd about it...LOL



Better yet, save some money and buy EFI Live or HP Tuners. Learn how to tune and save yourself a bunch of money in the long run.

Andrew
I'm calling my therapist first thing in the morning!!!!!!!!!!!!!!!!

Thanks for the help, Mark