What YR said
do the math
Chrysler has longer rods than SBC, so rod angles are different and maximum piston speed is further down the bore (more crank degrees} and maximum airflow is further down yet
It is the airflow curve we are trying to maximize
so if you look at a cam spec for a Mopar and they use exactly the same camspec for a SBC you can bet the house that they are using the SBC optimized timings and just using a "gang master" where all the lobes are on the same master
and just sticking a ford or mopar core in the automated cam grinder
so you not only give up the lifter advantage you give up the efficiency of the longer rod, have more overlap than necessary because the short rod chevy requires the intake to be opened earlier- and same with exhaust close
and the long rod mopar is fussier around BDC Intake closed and exhaust open as the short rod "dwells" more around BDC so is not as fussy about valve events