318 LA roller block questions

I can make a cam recommendation but I need a bunch of information that is not given or in stone. Am I looking at a cam for a 318 or a 390 or both.

Bad news, you really can’t have your cake and eat it with a camshaft for two different engines.

I gotta run and start the day.

Give me and us all the details of the engine & car being used now or the one for the future.

Already knew i would need 2 cams.. massive difference in 318>390.. This year will just be stock bottom end 318 with heads/intake/headers, 3000# car with stock converter and for now and 2.76s (gonna be granny cruisin for a bit) That's why the very mild cam... reason to go big and not have any bottom end when it's not usable. Next year will be a 390 and cam change at that time.
thanks for all the help.. have a good day!

Car hasn't moved in 45 years, i want to use this year to just get everything sorted and working and still enjoy it a bit though.