I'm looking for a factory style tune for my 04 cavalier 2.2 running cobalt injectors and stock pulley. I could do the factory tune from gm but I'd rather not buy another ECM does anyone have a baseline I can have by chance I would like to run the 2.7 pulley and 80# down the road but I will have that dyno tuned. Or maybe someone to walk me through tuning it... And if you have PayPal I will gladly make a donation