New/old motor for the duster

I had a.nice conversation with Ken at Oregon cam this morning and he confirmed it wouldn't be a good idea to put the duster motor in the power wagon with it's current cam...
So I am probably going to put the Hughes 1.6:1 rockers and Smith brothers push rods on the power wagon engine...
It has 273 rockers now and should go from 470 lift to 501 lift...