I'm running 4:10's in mine. Goes like a bat out of hell off the line and doesn't smoke up the tires like a taller gear. Downside ( and I don't know what tranny you are using?) is I'm running 4k rpm at 70mph with a Wide-ratio Toploader. I am going to put in 3.55 gears. That will drop the rpm's to about 3300 at 70mph. Of course the sound that the small block makes cranking 4k in rpm's is awesome! Sounds like a Nascar!!! Especially when going under bridges!!!
