Hey there, Im doing a build on a chevy K3500 with the 454. Once the engine is complete I'm going to be doing the common pin out to the 0411 ECM and will need to do some tuning to get things up and running again. I've read everything I can find on the process and downloaded Tuner Pro but would like some input on what unit to use to connect to the OBDll port. Could really use some mentoring here in Mid-Missouri!