You can buy one of the cheap in vice testers and a dial caliper to get you a ballpark.
https://www.summitracing.com/search/...spring-testers
They also have the copy of the Moroso compressor for about half the cost too.
So no machine shops that build high performance engines there? Valve spring testers are kind of generic.
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Skip Fix
1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand
1965 GTO 4 barrel 3 speed project
2004 GTO Pulse Red stock motor computer tune 13.43@103.4
1964 Impala SS 409/470ci 600 HP stroker project
1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs
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