I am using the PAC-1225 springs.
http://www.pacracing.com/1200_Series-Dual_Springs.htmlOD = 1.550", 250# at 2.00", 765# at 1.20" rated for 0.800" lift.
I don't have the part number handy, but I used Crower +0.100" height Ti retainers to get 1.950" install height. I think the closed pressure at 1.950" is around 270-275. Originally I had also used +0.050" locks to get 2.00" install height, but my T&D rockers would not clear the retainer. It would probbably work if I was using lash caps, but then I would have to get shorter pushrods.
