Iskenderian 201076 cam valve spring recommendation

Hi!
I bought a ISKY 201070 cam and it came without the cam card, so i don´t know what valve spring pressure should i use.
I tryed to email iskenderian 10 times and no answer back.
Someone can help me?
Thank you!
Ric
Cam Style:Mechanical flat tappet
Basic Operating RPM Range:3,500-7,500
Intake Duration at 050 inch Lift:264
Exhaust Duration at 050 inch Lift:264
Duration at 050 inch Lift:264 int./264 exh.
Advertised Intake Duration:304
Advertised Exhaust Duration:304
Advertised Duration:304 int./304 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:0.548 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:0.548 in.
Valve Lift with Factory Rocker Arm Ratio:0.548 int./0.548 exh.
Lobe Separation (degrees):108
Intake Valve Lash:0.028 in.
Exhaust Valve Lash:0.028 in.
Computer-Controlled Compatible:No
Grind Number:Z-70

Bracket racing, Lopey idle. Needs 4000 stall converter, 4.88 to 5.38 rear axle gear ratio. Up to 850+ carb, Needs minimum 11.0:1 SCR.
Lifters 202H
Valve springs 6005 (requires heads be machined with Isky #568 hole saw) Dual with damper, chrome silicon. Inner part no. 906-AM, O.D. 1.005", I.D. 0.730". Outer part no. 305-DHS, O.D. 1.430", I.D. 1.070". Seat pressure 135# @1.750". Open pressure 285# @1.200". Rate per inch 275#, Coil bind 1.120", max net lift 0.550".
Spring shims #2
Steel retainers 507-ST
Poly locks PL-3/8
Rocker arms 204
Pushrods 203-HG (compatible with guide plate cylinder heads) (this means they're hardened).
Valve locks VL-32
Valve seals VS-11/32 (requires heads be machined with VST-11/32 cutter)

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Thank you Techinpactor 1!
You are very helpfull!
Ric