What headers?

[66StangGuy]

I currently have try Y headers and a friend of mine who races 65 and 66 mustangs says that there no good. I was wondering what headers you guys like and what you would suggest. anyone have any input? I am saving up for something new in my car but i cant figure out what i should do next. If i dont change the headders what should i do?

also had a question about exhaust. i wanted to build an exhaust system from the headders back so that it comes out infront of the back tires with 3 inch pipe. If i put a 2 or 3 chamber flowmaster in between this distance will this cause a performance problem because of the location of the flowmaster. what about backpressure issues? thanks for any ideas guys. Im addicted to this car and i want to find what i should do next to make it faster sound better and look cooler.