So, I live in UT. Trying to find "simple" mods that will allow me to appreciate the ability of our engines. The tune made a HUGE difference! So now my next things are a catch can (learned from the rest), sparks and I thought maybe a 3 BAR but I wonder if that will help at altitude. My house is at 4800, the lowest I go in town is 4000. OH! And I can only get 91 reliably.
Would this help anything or is it a wasted effort?