SHELBY GT 350 Member
Joined: Jan 2011
Location: Central Massachusetts
There are some on-line calculators where you can plug all of that in and get the answer (speed for given engine RPM, transmission ratio, rear end ratio, and tire size). I don't have the links handy but they have been posted here several times so hopefully you can find them with a few searches.
| 2010 GT coupe | Daily Driver with some Steeda and GT500 take-off stuff for the occasional track day