Is this LA360 XE268 cam kit deal good for my combo?

Not enough compression for that cam in my opinion. I run that cam in my 8.9:1 318 and had to advance it 4 degrees because the low end was soft as baby ****. And that’s with 3.91s and a 4 speed. It’s a little better advanced but still not the “right” cam for the combo. Will it run in your 360? Sure it will. You’d probably pick up a little top end at the expense of a lot of bottom end. My advice, buy it and save it for a future project or flip it and make a few bucks.