65 Barracuda Pro Touring project
Here's a
link to a picture from a Mopar Muscle article. Plenty of clearance on the '65 Barracuda. Headers look the same, so you probably have the right ones.
I notice that you have an aftermarket front suspension, too. The magazine article was with a factory K. I wonder if your motor is farther to the left than factory. Pretty sure the offset was more than an 1", but I don't remember for sure.