I have a 92 Camaro RS 305 and it is being a bitch right now. When i start the car it will idle really low and once it warms up about a half hour later it will idle fine. I'll start driving it and wheni give it gas to get up to speed it dogs and the whole car shakes. I come to a red light and the idle drops down to roughly 650 in between 500-1000. In drive or reverese it makes a weird noise but once i throw it into neutral or park it returns to normal idle. please someone help me if you can. thanks