I know nobody can say for sure, but i was wondering what a 07 GT could run in the 1/4 with a MGW, LT's,O/R H, FRPP Hot Rod Cams, aluminum driveshaft, and a intake and good tune. Both with street tires and drag radials and a good driver. Any way of breaking 11's NA without spending crazy money?

 

I'm assuming you have a manual trans? If so, I'd predict that with good weather and drag radials you GT will run 12.80's @ 107 mph in the 1/4 mile. Street tires are too unpredictible to guess at, but your trap speed would be about the same while ET's will be all over the place in the 13's and maybe even the 14's if you spin bad enough.

11's staying NA is tough. Would be cheaper, IMHO, to go forced induction to get into the 11's.

 

Im thinking he can squeze in 12.5. But for the 11's Brian is right.

 

Don't forget you will also need gears, uca, and lcas. All of that, drag radials, and all in you first post will get you low 12's in perfect weather conditions, BUT not consistently.

I'll agree with the previous 2 posts and suggest forced induction.