Help with cam choice for magnum 360 please

I was also looking at the GM springs at one point but I'm definitely not interested in any machine work. The Hughes retainers with their springs(no machine work) will add .125 clearance between the bottom of the retainer and the top of the valve guide. Hughes single springs and retainers are about 165 bucks and are good for .550 lift.

Thanks for this info, but I cannot find the springs and retainers for $165 on hughes site, do you have the part numbers handy?

On second glance, are they #1102 or 1110? Both these show .550 lift-capable with different installed heights and pressures, both coil bind @ .620 lift.
1102 - 135# @ 1.750' INSTALLED 315# @ .550' LIFT (300# @ .500" lift)
1110 - 120# @ 1.660' INSTALLED 310# @ .550' LIFT (300# @ .500" lift)

Retainers are #1278
Keepers are #1300

Totals right at $164.40 for 16 springs, retainers and keepers - just like the man said

Question - Are new retainers and keepers required for either of these springs or will the stock ones work?