Hughes rockers

I’m sure there is a slight edge in power/durability getting the geometry absolutely perfect. But I’m not going for prostock performance, the 383 in my Dart has been in 2 cars and tortured since 2011 with the same heads a ductile rockers... the sweep pattern on those guys about covers the entire valve head and it’s a mopar 557 solid cam. I spin it to 6800 every time I drive it and it shows no signs of any problems.