My current bracket 400 stroker motor with 440-1 heads came with a set of Jesel 1.55 ratio paired shaft rocker arms, I set the heads up with 325 Lbs. on the seats and 825 Lbs. over the nose.
I installed each pair of rockers one set at a time with the pistons at TDC on the firing stroke, once I got all eight pairs installed that stupid motor shocked the heck out of me on how easy it rotated after breaking it away with the spark plugs out
I could not feel those valve springs at all
I'm still not sure if it was just the rocker set up or the cam or both
I'm going to use either T&D steel or Jesel steel paired shaft rockers on my new B1/MC headed motor