1st - 3.230 ( B16)
2nd - 2.105 ( B16)
3rd - 1.458 ( B16)
4th - 1.034 (B18C1)
5th - 0.714 (B18B1)

With that combinations of gears next gear RPMs would be (205/40-16):

1st to 2nd: 4562
2nd to 3rd: 4848
3rd to 4th: 4964
4th to 5th: 4834

Using a 4.266 vs a 4.400 final drive would give the resulting MPH per gear:
(is is possible to use the LS 4.266?)

1st: 33.9 vs 32.9
2nd: 52.1 vs 50.5
3rd: 75.2 vs 72.9
4th: 106.0 vs 102.8
5th: 153.6 vs 148.9

Basically I want the most speed possible per gear but with rpms falling above 4800 in the next gear.

Thanx for any help.