360 LA to Magnum swap, How hard is it?

Hughes 1110 springs,matching retainers,use stock OEM valve locks. As for a budget came,have your cord reground by Oregon Cams,or Bullitt Cams.A regrind usually runs 150-175,compared to 300+ for a new one. Keep the lift at .520 or less. The valve guides/retainer clearances get kind of close here.