409 header ID

[Verne_Frantz]

I've seen that there is a healthy knowledge base of header history here. Mostly SB & BB but maybe someone has an old catalog that can help me identify these 409 headers I have.
Here are two sets. The ones on the right are straight back for competition only. The ones on the left have angled outlets to adapt to a factory exhaust system.

This is the number on the flange of the RH set.

This is a close-up of the flange on the left set.

Here is another set hanging above so the photo is not as good as desirable. This set is also angled for a stock exhaust mating.


I "think" the right set in the first photo might be Hookers, but I'm not sure. Any identification help would be appreciated.
Thanks
Verne [img]<<GRAEMLIN_URL>>/biggthumpup.gif[/img]