No hassle headers for 66 dart w/360?

I'm sorry to say, but any header for 64-66 A-bodies are really of the "high hassle" variety. The small engine bay just doesn't lend itself to headers.

Plus, it's the gift that keeps on taking. Soon you'll realize that if you have a manual gearbox there's no room for the z-bar. Or clutch fork. Or power steering. Or starter. But since you have manual steering you'll have fewer problems.

I bought Doug's just because I helped a friend with his TTIs and the Doug's were somewhat easier to install. But the installation still sucked. I had to re-engineer a bunch of stuff to make them fit.

Your mileage may vary.