Hooker Header 5115 / 5116 fit question?

I just came across a set of 5115 Hooker Super Comps that are listed to fit E-Body. Hooker lists 5116 for A-Bodies. Has anyone installed the E body header on an A body? What kind of conflict would I expect to run into? This is a 72 Demon 340 application with manual steering.
Thanks FABO