Just curious if this was in recent years and if they had the swirl/wing design?, also if they did if you get rid of it. Interesting since the ones I have been around have been excellent out of the box and a couple were tested on different benches. The main thing is out of all the sets I've seen only a few were flow tested but all the ones at the track ran the numbers they should for the power. Chevys being like rabbits their are no shortage of afr heads around here lol.
