Pretzel, I've noticed that you don't have an air filter mod, so adding the TFI wouldn't be beneficial as just having those V&H duals fitted. That would be why the performance isn't is you were hoping for.
I've added a set of Cobras to my Classic and had an O2sensor fitted to check the mixtures and throughout the rev range it showed that the mixtures were ideal. I've now added a Chucksters air filter mod along with a TFI and will be doing some tuning hopefully soon. May even do some tuning with the quiet cores in also.
My stepping stone to what I'm riding now.
Suzuki GSX250 '82
Suzuki GSX-R600 '00
Vulcan VN1600 Classic '06
Fitted: tachometer, genuine windshield, K Drive hard bags, upgraded Meanstreak clutch spring with Judges washers, Cobra Speedster Longshots, Dobeck TFI controller, Chucksters air filter plate, Mustang seats with drivers backrest.
Up coming items: volt meter, oil and temp gauges.