That cam shouldn’t be hard on valvetrain… and is what I’d call a spirited driver cam. Especially in a 445 with C8-H heads. I ran a solid flat tappet that was 240/244 @0.050 and .600ish lift On a 110 LSA 20 years ago in a 390 with the same compression and heads in my 2WD SWB F100, drag raced it a bunch, towed junior dragsters to the track,drove it everywhere for a long time, eventually ran mid 12’s and 104 mph. Scott and I compared a lot of notes on porting old Iron heads. It takes quite a bit of work to get the H head to flow 270 cfm at 0.600 lift on a SF-600 bench. I sold Scott Vincent a 427 block a few years ago that I figured if anybody could save it, it was him. We met up at Blair Patrick’s shop and had a few laughs and caught up. He’s still a busy man. Still playing with the 2WD pulling trucks last I saw on Facebook. Very intelligent man.