Top speed 23 vs 24 Gear

[LAKECITYAPEX]

What is the possible top speed of an APEX with a 23/38 or the 24/38 gearing. Is there a chart or a formula that will give a possible top MPH with the right conditions.
Thanks

 

[RIKMAN]

http://www.turboaddictionparts.com/cata ... lator.html