depends totally on your combination, tire size, induction set up, camshaft, compression.
Any hemi that makes real power is gonna be more maint than a wedge, even w good parts they seem to be alot more sensitive to things like valve lash, spark plugs, tuning, etc.
i run a 4:56 on the street w/ my 4 speed. drive the car all over the place. With the cross ram i wouldn't want anything less, its pretty much a pig till you get it revved up a little. when it has a automatic in it i could probably get away with a 4.10 or 4.30
that being said you could build a bad *** wedge a lot cheaper that'll make the same power, just doesn't look as cool
