273/ 2 barrel camshaft options

Just so you know;
I'd run those lifters on any half-decent used 318 cam.
Meaning;
I already have, and it ran for miles and miles and miles, using the old normal-zinc oil.
Heck, If I had a good used 360 cam, I'd run that.
Meaning, I already Have.
And, if you don't like that Idea, you can just convert the valve gear to run hydros.
Meaning, I already have done that too.
Furthermore, I have run uglier lobes than the one in your post.
Just so you know.

But Here's the thing;
Back in those years, decades ago, I was not afraid to go back in at a later date and backtrack. To me, it was just time, (of which, being a young unmarried man, I had lots of) cuz I always had another old cam laying around, and lifters, and etc.
It just never happened.
Your results may vary.

And finally, If you're gonna keep that engine at 8/1 Scr, You need to keep the Intake Closing Angle, at or very near to what the factory had. If it gets to be too much later, you will be thinking of installing a higher-stall convertor, and/or gears soon following.
Just so you know.
“Just so you know” and “I already have…” never did I think my eyes would light up with hope reading those words haha. Thanks so much for taking the time to read my post and comment! I like that positive motivation!

Curious though, you mention having ran a cam with worse lobes than mine… are you confirming and or denying that it could be maybe should should not do don’t haha to run my cam as is? This was suggested to me from another source once before saying to get it cleaned up, no grind just remove the surface rust and run it with the same lifters and add a zinc additive in the oil. My first thoughts wouldn’t this just continue to break down quickly and send shrapnel through the system into the block and bearings and so on?

The isky racing cam seems to be tried and true from what I am reading. Again, I am inexperienced in certain portions, what else would need to be changed or altered to be able to run that cam? Springs, pushrods, lifters?

Thank you for the information and the clever grammar truly appreciate the attention to detail.