I don't know that EPA had anything to do with Holley not producing Gen 3 A body headers.. I mean they still make alot of headers that fall into the same category. Hopefully it's not actually a fitment issue with moving things forward.. or it could just be supply and demand? I don't believe they make the 1.5 forward mounts anymore and they don't make anything A unless it's a spool mount.. Unless I missed something. I did look