I need to replace my valve springs on this old pro stock motor,528 ci,14.5 to 1,iron scj heads major port work,measured the solid roller cam at the rocker,.685 lift,it also has lash caps. don't really want to tear down as have a nastalgia race in two weeks. o.d. 1.545 spring height 1.915 if anybody has a set or info that will help me it would be appreciated! thanks.