Anyone running a 4L60E trans behind a carb'd LS motor?

[FLYNAVY30]

Ive got a freshly rebuilt 4L60E with converter, remote cooler, and remote filter that I got for a song and a dance. I planning on running it behind my carb'd LS1 that Im building for my daily driver '72 suburban. My question is, how are you guys controlling the trans? Im assuming one of the aftermarket stand alone computers, but which one is best and why? Additionally, how are you guys running your speedometer? Id like to continue to use my factory gages but dont know if there is a way to convert the electrical output to the mechanical input on the gage.

Any input is much appreciated.