New lifters on a used cam

Do you need to do a break in with new lifters on a used cam?
2000-2500 rpm for 15-20 minutes?
Mike

Every time you change one or the other.:D
It's a little risky using broke in lifters on a different cam or vise versa, but a lot of people get away with it.
I did it on the Wifes stock 318 but it was new lifters with a used cam.