i know man..i apprecate all the help.the car has 200 thousand miles on it and its originally a v6 its clonned over to the z28 i just found out and the motor and all the parts out of the parts car to make this happen has like 60 thousand on it.when i changed the o2 sensor on it i found that one of them was still a factory sensor with 200 thousand miles on it so maybe the fuel filter has the same mles?i'll check it out but wouldent it get shitty through all the rpm?the car runs good its just when u sit there and idle it starts to like breath pretty much.like fluxuates in rpm from 1000 to 15 hundred.