Well, the 1LE is a "track capable" car and it comes with 3.91's. So, I'd say 3.91 (which is exactly what I have).
Vengeance Kaotik Cam, C.A.I., ARH LT, Pypes Cat Back, ZL1 Shifter, Quantum Brake Ducts, JDP Tow Hook
Scorch Yellow Trim Kit, Shark Fin, AAC DRLs+ABLs+SMDs, ZTA Rear Spoiler, R.Y. 1LE Splitter
Pfadt coilovers, camber plates, trailing arms, Pegasus Solid Subframe & Hendrix offset differential bushings.
Pedders ZL1 barz, radius arm & steering rack bushings. BMR adjustable toe-rods.
Hotchkis Max Chassis Brace
1LE 3.91 gearzzz. Drive Shaft Shop Road Race Axle Upgrade. TurnOne power steering pump.
447 HP @ 6180 RPM / 418 TQ @ 5100 RPM