Rotated the tires with 79,900 miles. The two pair are not identical, but the fronts were looking bad. Also, when I had the electrical short, I decided to pull out the Brisk plugs and throw them away. Horrible purchase, total garbage spark plugs – they “chugged” at lower RPM, usually in traffic or slowly rolling in gear. I used them both tuned and stock, as well as with the Unichip – basically the same.
I put the NGKs back on, probably about 78,000 miles – so they have about 15,000 miles on them, so far.
I’m still looking into better tires, but keeping these for now. Going to try and beat my 7.16 0-60 MPH pull. I will try setting the wot box launch lower – to 3200 RPM.