Got my cam.

BillGrissom said

That is very high lift and little intake-exhaust separation, so will idle poor and rumbly, unless you use Rhoads leak-down lifters (not for solid lifters). Likely not much intake vacuum to operate a brake booster or climate doors. Those look like high-load valve springs too. More for racing than cruising.

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Since when is 110deg "not much" lobe seperation on a quick rate of lift 220/[email protected] cam? Why bring Rhoads lifters into this thread, full of mech cams? The theoretical lift will not be realized, l was hard-pressed to achieve .470" with a .490" design lift on the intake.
You are correct on the valve spring loads, they're a bit up there, over the head of the 340hp springs by far. Seat loads on the 340 units is only gonna be 70-75# at the designed installed ht.