Max lift with stock valve length?

The Comp 26918 Beehive will do nicely. Coil binds @ 1.100". Normally installed @ 1.800" with 125 lb seat. With your valve lift, you could reduce this to about 1.750" to increase the seat pressure to about 140. Beehives require less tension because of their lower weight & design.
That pointed at the original question or Copperhead's roller question?
The person I got the cam from said he was running a beehive but didn't know the number or specs.