My oil burning pig. Pics too!

Silly qustion,you say you upgraded cam at the same time correct? Well by chance is it more lift? I ask because are the spring retainers hitting the seals? Just another idea to rule out. Had same issue on my old 340 until I installed a good se of Manley viton valve stem seals very & carefully put them on my 340 & it quit using any oil at all!