in miami are you kidding me, there are a million and 1 dynos available.

 

If you get a wideband O2 you can tune it on the street, just retard your timing to a safe level than tune your A/F until you get that right. Once you have a safe A/F you can begin advancing the timing and adjusting A/F accordingly until you reach a good level

 

try cybernation ft lauderdale, mic turbo, matrix, murrays, if they dont have they will lead you to one, I'm very sure cybernation have one.

 

it sucks for me in Germany no dyno, but I was told that bosch have one, I have not the chance to check it out vbut they probably want a lot of$$$