How much time would I shave off in the 1/4 mile if I change the gears in my 99 mustang gt from 3.27 to 3.73.?

I currently run a 13.7 @99 mph. My car is stock except for a computer chip.How much time would I shave off in the 1/4 mile if I change the gears in my 99 mustang gt from 3.27 to 3.73.?
who cares ya cars ****How much time would I shave off in the 1/4 mile if I change the gears in my 99 mustang gt from 3.27 to 3.73.?
not enough to make a difference you might knock off a second or two but the future maintenance isn't worth it look into tacking away some weight or modifying you fuel system good luck
Your car is nice as hell. Don't let these little wussy pu*sy boys tell you it ain't. They need to grow up and buy a ford. You would probably get a second out of that which would help. Your car is so fast because it's a ford. You have a bada*s car. Now get to it and go bust some chevy's!!!
If ur running a 13.7 in a 99 stang gt, it's definitely not stock. my 95 with some mods destroys ';stock'; 99 GTs. They run high 14s to low 15s. But, if ur cars runs a 13.7, the new gear will drop about a tenth.
I'd say 1 to 3 tenths. It trully varies.
I dropped almost .5 off my 1/4 with my gears and tlok install i went from stock 3.27 to 3.73 in my auto... The pick up on the car is great. Only thing i had to get use to is the higher rpms while cruising on the highway.