I purchased a hood when they 1st came out and have not installed it yet, so the retooling concerned me. I emailed Goodmark asking them if it was true that they were retooling the 66 cowl hood. They responded (pretty quickly, I might add) that they were not retooling, only reworking the tooling they have. Apparently, the curves at the front of the hood were a little wavy and they were trying to fix it. That's what I was told, anyway. The edge of my hood looks fine????? The only area on the hood that I do not understand is why they did not make the filter housing sealing edge on the hood even all the way around. For some reason, the backside towards the windshield steps closer to the hood by about a half inch. I'm pretty sure the 69 Camaro and the 70 Chevelle were not like this.