Hey guys so I am new here. I have a 07 Chevy Avalanche with a 5.3 Flex fuel V8 4x4 LT. I just bought my first HP tuner. I had a Diablosport i2 before this and since I recently installed a Summit 8701 Stage 2 truck cam and crane springs, I needed a better tuner. I did have the engine running with the Diablosport tune but barely. I watched several videos and get the basics of HP but I am not keeping my truck running after I ported and polished my throttle body, the air tables and TPS may be off not sure how my MAP changed either. Can anyone help?