I have had RAS and the present company bush and accurised three sets of ductile iron rocker arms, they did not get them done on time and at the price they quoted me originally.
They raise their prices all three times before shipping them to me and took 2 to 6 months longer than they quoted.SCREW THEM rant down
I buy Harland Sharps now, way better parts, price and service scope twocents

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)