340 xhead spring shimming, height and pocket question(s)

Yeah, these heads were done 30 years ago lol and at that time I was fine with "stock". I didnt realize this cam was that much above stock?
Thanks for your input.
And that's a great thing to point out, if You don't TELL a shop current & possible future plans, that's what You will get....stock spec with a little "cover their ***" thrown in...which could screw You if You put a cam that should "just work" within the stock specs.