Stroker Performance Review

Well this is what's in the trickflow Instructions

"Valve Springs Standard: 1.460” O.D. Dual Spring (TFS-16893-16) 120 lbs. @ 1.900” Installed Height 394 lbs. @ 1.175” Open 390 lbs./inch Rate .650” Maximum Valve Lift


if it were 390 per inch, at 1.9 wouldn't it be almost 770 ish...lol
Something in the equation is off


good find.... likely a few hundreds