Hey guys my friend has a 1990 Honda Civic Si. Its all stock. Any way the last nite my friend raced a MX6 with I/E and lost. Then tonite he raced a Eagle talon esi. He beat him off the line and through second and then in 3rd the Eagle talon caught him. my friend is a really good driver anyway. My question is how much would it help if my friend threw his 65 shot zex kit on to his si and retarded the timing two degres with some zex plugs. With racing cars like the MX6 and the Eagle talon esi. Anyfeed back would be great. Thanx.