Came across this tidbit over on carbdford.com
"1.7 rockers from 460(I think 1.73 actually) will fit E7's. I'd grab all sixteen. Then match up the most accurate ones, then install them on the E7 intakes only(. Would add some good lift for stock cam. Should be real cheap to pull yourself..no demand for these..who else wants them?"
Anyone try it?
You'd be better off putting them on just the exhaust side of the house as opposed to just the intake side. Read here: http://www.mustang50magazine.com/techarticles/138_0408_arm/index1.html