what is the difference between the upper and lower intake manifold, and are they sold as one piece or two. I was also looking at two different ones, the Ford Racing 94-95 Cobra, and the Edelbrock Performer. between those two which has more power, which costs more, and which is the better value? I really like the cobra one because of the 5-Liter Cobra plate on the top of it. but which one do you guys thing is better
Is it really that bad, or are you just being anal? 
