Yoshi cam question

A mate is building an old z1 that was totaled in a side on crash into a streetfighter.
When stripping the motor we noticed that the cams are marked POPY which I guess means they are Yosh cams? They are marked B on the end of the cams. Does any one know what cams these are and what specs to set them up to?
He is also going to run a set old GSXR flat slide carbs on it, 34mm I think, hopefully it will run ok with the cams and a 1015 wise piston set?

Don't know what the B means but I have posted a Yoshimura cam spec. sheet. Maybe you can take your cam spec.s and see if they match one of those listed...