There were at least 4 different Chevelle/Camaro big block pans used in 67. Only the 3rd and 4th versions would have been used on 67 Camaro 396's (or maybe only the 4th, depending on when that version began use).
1st style has less indentions on the sides (more than a 66 Chevelle pan but less than the other versions listed below and shown in the pics), and has the front center bolt hole. I have a late October 66 car with that pan. I don't have access to one of these pans off the car so don't know what the baffle looks like.
Pics of the 2nd style are below. 2nd style has front center bolt hole. The baffle has an X pattern stamped in it, rather than the V pattern in 69+ pans. Not sure when that version started, but it had to be before Dec. 20, 1966.
3rd style is the same as 2nd style except without front center bolt hole. Per GM documentation that bolt was dropped beginning Dec. 21, 1966.
4th style is the same as 3rd, except the drain hole is moved forward to be in the deepest part of the sump. This is also identical to a 68 pan. Not sure when that changed happened, but I have an unrestored car with T0509EG engine that has that pan, which is the earliest verified original I have seen.
Happy hunting!