Small block MP .528 solid cam - which valve springs?

I've only used it in a 340 but could touch 7200rpmdependingon how I degreed it.
Stick it in the 2* they recommend and you can touch over 7000 rpm.
stick it in 4* and you can get 6800'ish.
it advertises as 28-6900 rpm 284*adv dur- .528 lift- 241*@.050 dur-112cl w/60* o lap

good piece, it idles nice, sounds good but not radical when warm and will still rev with a broad power band.

It will also pull anywhere from 9 -12.5 in vacuum in neutral [4spd only ref to go by]
Basically...in my setup I run it at 107.5 installed and with single plane intake had 9 in of man vac, now with a LD340 dual plane it has 12.5 man vac.

good to know...