Magnum questions?

Can't go much over .500 lift. I bought hughes springs and retainers, stock heads ended up with a .512 lift camy from Hipotek. They are awesome there. I have videos of checking cleaeance. Rite at about .530 lift the retainer/lock hits the valve seal.

Im looking at Comp Cams CCA-20-745-9 .480 lift
Can I get away with same springs for basically stock motor/ manual trans street use?
Appreciate the response......
Thanks, Dave