Dougs d450 headers in a 65?

Hi there guys. I have a 65' Barracuda I'm putting a 360 in with magnum heads. I'm not as concerned with price as much as I am ease of installation on the exhaust manifolds. Has anyone used these Dougs D450 headers in your early A-Body? If so, how'd they fit? Another thing to note is that I only have manual steering, not power. Thanks guys!

http://www.summitracing.com/parts/dou-d450/overview/year/1965/make/plymouth/model/barracuda