Hey guys! Ive been tuning a few N/A gm's for a while with the occasional heads/cam setup. Ive done 50 vehicles so far with all positive results. Im ordering a tvs 1900 for my 2011 5.3 sierra. I have a base magnuson tune stored on my pc. But where can I go from there engine wise? I know about the trans tune but since im new to FI, im a little worried that im not familiar with principles related to FI engine tuning.