i just finished putting my motor in today its a zc everthing is hooked up correctly. the car starts fine it just idles at 2000 rpm's and sounds like a dirt bike.when i rev it up a little it on goes to 3000 rpms and thats it and the intake pipe gets loud like its acting as an exaust even though its not blowing anything out.there is no smoke coming out the exaust,the motor shakes just a little and has the problems i mentioned above. there are no codes no check engine light. is it possible this is a timing issue? its really confusing to me why does the intake sound like exaust? HELP before i light this car up!!!