i supercharged my ion 2004 i have the 77.9 mm pulley i think is the gm stage 2 in try with the lsj injectors and im really too rich my a/f ratio is 10 on idle and i keep my l61 injectors on idle i have 16.5 daily drive is perfect 14.7 but over 4000 rmp im really lean probably because i have the l61 injectors trifecta can't tuned my car because i have a 2004 any one can help me

sorry for the quality of my english im french