LA w/ stock valve spring magnum heads - maximum lift

What will be de maximum lift and rpm the stock magnum 5.2 valve springs could support?
I have a pair of these heads in good conditions to put in a LA 318... what do you think about these light camshafts below, will they work with the stock magnum valve springs?

http://www.summitracing.com/parts/cc...iew/make/dodge
http://www.summitracing.com/parts/su...iew/make/dodge
http://www.summitracing.com/parts/cca-20-222-3
I know there are few parts to consider in the LA-magnum swap heads.

what do you think about Summit camshafts?

thanks!

Thanks

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'75 Br Dodge Charger R/T 4spd
'73 Br Dodge Dart 4spd