Who to use for nitrous cam selection?

[85Camaro]

Who is recommended to go to for selecting the cam for a combo
I know some when it comes to the terms of cam specs but not what to look for when chosing a cam to fit a combo. Keep in mind this is a nitrous combo if that makes a difference.

Thanks,
Doug

[Monty Mikho]

Try LSM... I dont have their number here in front of me but they are in Waterford Michigan