changing gear ratio from 3.23 to ? Street & Strip Experiences?

hm, currently I'm asking myself to what gears I should swap in my 8 3/4.
1 have 27" tires, 3.23 behind a stock carurated 6.1 Hemi/5speed (Toyota).

Gear Ratios
First 3.251
Second 1.955
Third 1.310
Fourth 1.000
Fifth 0.753

This is great for long distances (Autobahn High speed). But on the track I stick in second gear, 7.5rpm, 95 ml/h. wanna go shorter to be faster than 15seconds on the track but don't wanna lose highway comfort. :)

in the moment i'm undecided between 3.55 and 3.91. Is it a big difference to go straight to 3.91?