383 rebuild - kinda whimpy on the dyno?

Valve springs:
Precision Engine Parts - PEP - Las Vegas, NV
Item #: PSK-272-3-7
1.46odx1.06id*[email protected]

Builder said “they use these springs all the time and they shouldn’t be a problem”. 110lb pressure at seat and 230lb open.

I don’t know... a couple of sources told me this isn’t enough of a spring.

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