Finally the car seems noticeably much smoother. I did apply the recommended settings for properly failing the MAF. I am running CTS-V plugs, one step colder TR6 iridium IX. I beat the car in 100 degree heat so I wanted to be able to run some timing eventually, just a personal idea and working great so far. Previously I was on E3s and they worked well but after a year it was time for them to be changed and I was battling some minor knock issues. The car is running well, I am pleased and though I know I have a LONG way to go I'm sincerely thankful for all your help and input. Race August 2nd, I am praying for 1.79 / 8.19 1/8 mile hopefully at 87 mph