magnum r/t springs

the guy from comp that i spoke to at the gatornationals said comp is not
interested in researching springs for that head because nobody uses them(!)
bad attitude racing engines in morriston,FL found a crane spring PN-96803-16
that works with the mopar perf.retainer for magnum/2.2.my problem now is
that the pushrods barely clear the dinky holes in the heads,so i gotta pull them and grind 'em bigger.