I use Joe Gibbs Driven "Assembly Grease" on the cam and lifters.

Engine Builder Products - Assembly Grease - Driven Racing Oil Sales

I also use Joe Gibbs Driven Break-In oil "BR" or "BR30", followed with "HR1" or "HR2" after break-in. Whatever oil you use, it needs to be a high zinc oil for flat tappet cams. I do not like the ZDDP additives you put in the regular oil, and do not recommend them to my customers.