didn't mean to come across as criticizing you. certainly not saying you're idiotic. you might change your thread title to "looking for competent mechanic in Tampa." they should all be able to do the test.
A couple Tampa Bay area shops that deal with GM's would be Anti Venom and Precision Motorsports. Don't remember anyone else off the top of my head but there are probably a bunch of options.
94 z28 M6. Not much left stock. 99 Silverado, RCSB 4.8 5 speed, level kit, d585 coils, other than that, stock!
"Right now I gotta go get a new Camaro, cause thats where the **** is baby!" -Master Shake ATHF Parts! Nitrous, LT1, swap plates, etc!!!