I have a few sets of New valve springs. Just put a set on my car (87 GN) & they work great! As far as I can tell very similar specs to Comp 980's. 100# seat pressure @ 1.727 height & 230# @ 1.340" (damper can be removed to drop about 5# if desired). $35 for a set of 12 shipped to U.S. lower 48. Paypal is fine or M.O. Thanks, Ryan. Email 930t@sbcglobal.net or call 417-880-9990.