Cam Break in Question
6T9 GTS, I am running that same cam (XE275HL) and springs #995 (dual) Comp said to break in with outer springs only. I checked the spring pressure of the outer springs only and they are 85lbs. (closed seat), The springs I had on there Mopar '249' checked 80lbs. closed, so I broke it in with the older springs and switched over to new ones after. Used the Comp break in lube and Dello 400 (diesel oil). All good so far. Good luck, Terry.