Re: Advice needed
That will be using a Series 2 carrier, for which there is no limited slip available (though there might be a "lunchbox locker," I have not checked).
There are plenty of Series 3 limited slips, but you'd need to buy gears. You could go up to (but not including) 3.73 gears, but I would recommend 3.08 or 3.42 for the stock cammed (or small cammed) big block and no overdrive.
I am a huge fan of the Detroit TrueTrack differential on a street vehicle, but they start at 3.73 gears and up (Series-4 carrier). To keep the gears sensible, I'd pick a clutch type limited slip. It will be fine.
I would avoid a "locker" on a street vehicle entirely, but possibly consider it if you do a lot of drag racing or off-road. They tend to be noisy and abrupt and somewhat unpredictable. Awesome grip though. Lockers are best at "straight" or "sideways."
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