A shop near Miami?

[euroZ06]

Hi,

I live in northern Miami, and I would like to find a good shop to do some engine work on my 68. I'm looking for a cam job mainly (i have a stock 383) and also need my diff to be redone (about two years ago i got 489 with 3.23 gears, but the guy that put it together did a shitty job, so its making noise now).

Any recommendations are appreciated.