To get my recurve to shoot i have to have my arrow set knock high about 1/4 of a inch... Does this sound normall or do I have to try another size arrow... Right now I'm shooting 2016 with a 50lb recurve with about a 28in draw...

No that is not at all abnormal. Within limits and those limits may be rather large, nock height will vary some degree from one shooter to the next, and how you yourself are shooting. For example 3 under tends to require a high nock point than split finger. Also it can kind of depend on how you're measuring it.
For example take the line that is exactly 90 degrees to the string and that also intersects the point of the rest or shelf that the arrow sits on. Where that line intersects the string we will call 0" nock height. Now lets say just for the heck of it that your arrow nock is 3/16" thick. If we put the nock set on the string 1/4" above the point that we have already established as being 0" then really your arrow is only 1/16" above absolutely level, if even that because there is also the arrow diameter itself which is surely larger than the nock is thick. Get it? Gawd I hope so!
So how did you measure? Are you really nock point 1/4" high or is your arrow actually nearly level?

Not bad. if you shoot 3 under, you usually have to set it well over 1/4" if tillered for split.

I shoot split finger; one over, two under with a tab and my nocking point is set 5/8" high off the shelf. I'm also a bowhunter, not a target shooter.

Thats a tad high but it works. Usually when I have to put this high, my arrow is too stiff. But also can be tiller issue. But whatever works.

1/4" above center isn't unusual at all--pretty common.

As said, shooting three under will need to be 1/4 or more. Also, where your rest is. Off the shelf will be different than a rest an inch or more higher.

Even though I'm shooting low poundage bows which you can see in my signature, I need a stiff aluminum arrow because of my long draw length. The stiff arrow is "tamed" by adding lots of point weight and also by adjusting brace height on my two recurves. This is why my GPP (grains per pound) is so high for both bows. I shoot off the shelf. Arrows are fletched with three, 5" right wing parabolic feathers. Both of my bows are cut 3/16" past center too.

Just tellin ya man. You ain't doing nothing the rest ain't doin. I shoot 30" draw too and with 2018 from 50lb bow.

The 195 and 200 grain points, plus a 32" arrow, are the reasons for needing a stiffer spine.