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If you set your springs up equaling the nose pressures, that is Ok too. Just a little harder often when you are dealing with stock springs. Just make sure you have enough on the seat too.
Cam design, engine use, seat widths etc., all dictate the seat pressure. Nose pressure is about engine RPM, valve train part weights and cam design.
Be careful here. Just make sure you know the weights involved as well as the cam design. If the cam design is a copy, make sure its a good copy as this can have detrimental effect on the valve control over the nose and back onto the seat.
Setting up the valve springs is not just about sticking 3-5 shims under the spring base and forgetting it. Unfortunately this is common practice in the production head repair business.
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