https://forums.maxperformanceinc.com...&highlight=LSM
The Moroso valve seat pressure tester will be a lower price unit.
We check new valve springs before they are installed with a Rimac machine at their verified installed height with their retainers in place.
NEVER trust the published figures !
Once the baseline pressure is known from the bench tester we use a LSM tester and monitor them while on the cylinder heads.
And note they can vary slightly as measured on the cylinder heads vs a bench tester.
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'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 )
Old information here:
http://www.hotrod.com/articles/0712p...tiac-trans-am/
Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine)
5.14 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension
https://www.youtube.com/watch?v=qDoJnIP3HgE