Can anyone reccomend any Shops in the greater DMV area that know how to tune the old 6bt's?

 

DMV?

Around here that is what I call the - Department of Motor Vehicles.

 

DC Maryland Virginia

 

Better off to fiddle and learn on your own.

FWIW, I always struggled with carbs and spark ignition. Diesels were somehow easier for me - 6.2 Chevy diesel was my first.

 

I agree with u2slow, it is best ti learn how to tune them yourself.

What are you looking to do with the tuning?
More power, improved bottom end, less smoke, more RPMS?

 

right now just bottom end and less smoke

 

Lacking bottom-end power is rarely a problem. Except automatics - they throw a bunch of that away. This may require a lower stall converter.

Smoke when? Has it been 'tuned up' before? If so, they may have dialed the AFC and/or fuel pin for more fuel (smoke) to try and help the first problem. If it smokes constantly (warm/hot idle) you could have an injector thats not performing.

There is a reason they started using 12cm ex housings from 94+ and that's to spin the turbo up sooner - more boost/peppiness and reduce smoke.