Picking gears

I like a 3.70- 3.90 gear, with a 25"-26" inch drag radial.... I went 380/360 clone, with execeptions..( EQ heads, slightly better flow, RPM Edelbrock air gap dual plane, and a wider 110 lobe center cam...
As for 273: I like a 3.91 for fun time, a 3.70 -ish gear" for everywhere... No o.d. ...overdrive...... Keep it , simple....
TUNE IT, IN.......:)