Well, my combo will be self ported e7's with stock valves, forged 306 approx. 9.5:1, trick flow #1 cam, BBK LT's, FMS 65 TB, etc. etc. I always had the cobra planned until i noticed something about the edelbrock I like. The upper to lower middle bolts are on the floor of the upper, doing away with the kink in the upper with the cobra. I like the cobra for it's price and built in EGR spacer, but don't like that kink. What do you guys think? Which is easier to install?
but I will agree with everyone there is way more room to grow. The Performer has bigger runners out of the box than I think is possible to port the Cobra out to, and as 90mustangGT said, it's a helluva lot easier to port the upper with the removeable plate. That kink in the main throat is no great idea either, as you already surmised.