What springs come on eddy performer RPM heads

I don't want to kill the driveability with overkill on the camshaft
.1 would be worse case scenario?
8.2 CR
27" tire
Low and mid range are my goals 5000RPM

he could run better heads even port these for under .500 lift but evidently not this time
here will be a big improvement over stock with his new heads even under .5 lift
comp 268 or the crane or the super shops piece of crap are still ll the wrong cams
The super shop cams were all ground in Detroit and worth about $30 new- but good quality and so mild there were few cumbacks

recap of other questions

you will not have to machine the edelbrock heads
but check them out anyway
you would need new springs and seals and most likey guides for stock heads and you would cut for stem seals so yes to the question for stock heads

to figure spring load you need either:
one load and a spring rate
or two loads at different heights- which you have
now figure the spring rate from the two loads given
subtract the differene in the spring heights- open and closed
then convert from that fraction of an inch to one inch
to give you the rate per inch 1.000/
now you can see what a change of .010 or .030 would uch you ave to shim -or cut the seats or change retainers- to get the load you want at the height you want it
we are assuming liner rate springs here- not beehives