someone help? it has no o2 sensor and it also has a aftermarket fuel rail with 450cc injectors. the problem is sputering and stalling. i have tried the indivdual resisters and it just seamed to make it worse tommarow i am going to try just a regular resistor box to see if that helps.i have checked and rechecked the vacum lines and those are fine, as of right now i am completley stumped if the resister box does not work.