The Cam I purchased has valve spring requirements with my 1.6 ratio Harland sharp rockers of:
145lb @1.800” closed pressure (installed height)
345lb @1.250” open pressure
This will likely add some confusion to the OP, although it’s not the intent.
The TFS-16094 springs are PAC 1294’s in a TF box.
The TF specs don’t exactly agree with the PAC specs([email protected]/[email protected](.550 lift), 428lbs/in).
I’ve tested the 16094 springs, and my results basically agree with the PAC specs.
So, my experience with them is the actual spring loads as installed on the heads is higher than what the paperwork that comes with the heads indicates.
“Ymmv”
And then there’s this:
TF’s own spring chart, which shows the specs for the 16094 to match the PAC specs…….. which doesn’t match the specs in the paperwork that comes with the heads.