i need help bad. i put long tubes and a t1 cam in my car. Ever since i have had trouble. When you start it up every thing is fine. I take off and it runs ok for a min or two and trys to die and misses bad then it cleans up and is ok till you turn it off. I dont know what is wrong been through 3 sets of o2s. The headers are dynatechs and the cam is a 221 221 .558 .558 on a 112