[Day2_69Z]

I doubt if these are Hooker's or for an F body BB.
#1, Hooker Headers have 1 of 3 ID configurations. The welded on tag for units made 78-79 & to the Present.
Stamped flange w/ Hooker Headers or on units made prior to 78 , the collectors are stamped with....
The Hooker Headers HEART 360°
around the Collector.
#2 F body firewalls are closer to the rear ports than on say, Chevelles,Impalas & trucks....
.the F body BB headers typically have the rear port pipes curved down or pushed forward then down for firewall clearance.
These appear to be for a Full Frame car with front steering boxes. ..
Another thing I noticed is the #325 font which is late 60's-mid 70's style. and the stick welded primary tubes to the collector. Doug's/ Doug Thorley and others used this technique, Hooker did not.
just my thoughts....