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

If i remember correctly inst height for factory spec is 1 5/8-1 11/16. Which mine falls between, BUT doesnt meet Comp specs. If the tech line had pointed out from the get go the proper springs lol. I even researched and compared PAC and a few others...I dont really want to machine the spring pocket as it would kinda leave the heads matched to those springs.
Tech mentioned beehives but not sure of their price.
Thanks again.
The LS units install @1.80", I'm using longer valves on this project, but there are beehives in the range You need....new retainers a must anyway for those so...it's only $$$ Steve!!! Lol..