Okie so I rebuild my engine on my 01 camaro SS. In the process i added a few modifications: cams, long tube headers, intake, 85mm throtle body, 3200 yank high torque converter, 3:73 ratios, and i also iliminated my catalyctic converters and just did straight pipin since i purchased a new magnaflow system. The few times i started the car it was running great and than i heard a rattling sound pretty loud and when i go to rev it the car starts strugling and eventually turns off on its own. But if i dont rev it the car never turns off its just when I step on the gas for a period of time that it turns off. I dont know if i have two seperate problems or just one big one? If you guys have any suggestions I would love to hear it. Someone suggested that it needs to be tuned and that can be the problem with why it turns off as i press the gas and that my ratling sound can be a completely seperate problem. Well thank you for your help I greatly appreciate it.

 

first off check for loose connections to pipes and see if the exhaust is rattling against the car.

2. you need to get the car tuned for the mods that you have done. This will make the car run right and also keep it from going so rich it kills itself.