Herb, I think you should dump those MT radials and get yourself some MT ET Streets. The ET Streets are a very sticky tire. I drove a buddies set on the street and noticed a big difference compared to my MT Radials The radials are a good street tire but in my opinion are not good for the track for traction. I also think that if you want to hit your mark at the track, you should go with 4:10s in the rear. I know you want to keep it stock looking but for a better 60' time, you should consider some Caltracs.