[decooney]

Not all, but in general I've found that most people with small block Cobras prefer 3.55s or 3.73s with 5speeds, and several with Big Block Cobras and Toploader 4speeds run 3.31s or 3.08s because the extra torque pulls you right through the gears.

These cars are so light, to me it does not make sense to run 4.10 rear gears, and especially with the 5speeds that have such low 1st gears anyhow.