Gear ratios I've had:
3.73-306,ported e7s,.493.510 212/222, Stealth intake, 650dp-ok on street, sux on strip
3.55-306,165,FTI cam, Stealth, Bigs 650-sux big time
3.73-same as above-better on street but still sux i've cussed at the monster tach several times telling it to hurry up...