Is there any of you guys running 4:10 gears with a stock 4L60E with a 4000 up stall. (and SI), want to see what you top end mph is I may need run a taller tire. my mph is 109-111 with M/T ET Street DR's (275/50/15) I beleive that is about 26.4 " tall. Leemme know, thanks for any feedback. Thanks Sam

 

nobody with this setup?? or close to it? come on guys let me know something

 

so your quarter mile speed is faster than your top speed?

 

kind of.. but need a couple more mph to get my et down a tenth or so..