That don't look like the 35270 Hedman headers to me. The pipes coming off #3 & #5 exhaust ports come almost straight down. The pipe in your pic is going horizontal.
Check out the pics of the center pipes, and see if that's how your headers look.
Below is a pic of some 3-tubes on my last '68 Bird.
Sorry for the terrible pic. It turns out I do have the Headman tri tubes. Looks like you have a manual steering gear? Is it as close to the header as mine? I would also like to ask what type/brand of gaskets anyone is using? Are the tri tube gaskets the same?
Many Thanx 67 Firebird 400 conv 69 LeMans 400 auto od
