Looking for valve spring recommendation for EQ heads

I bought new bare EQ heads, aftermarket standard diameter and length Magnum valves, the Hughes spring kit as linked above. I sourced ordinary blue viton seals for for magnum heads. Shop honed the guides, did the valve job, and set the installed height of the springs. No spring seat or guide cutting needed. I'm at .517" lift ,intake and exhaust with plenty of seal to retainer clearance. If your at .536" you're within the range Hughes lists, but obviously it's all gotta be checked, along with the spring pressures.:)