RE: 350 gr?
Question. Are these arrows for hunting of target.
sounds like you need a shaft weight of about 225 grains. This is assuming you are using vanes.
That means you are going to need an arrow the weighs about 7.5 grains per inch.
I do not know you set up or bow but you are going to have a hard time getting that weight and a correctly spined arrow. Assuming you are shooting about 65 lbs, most of the arrows weight at least 8 grains per inch.
Some suggestion for a 65 lbs bow, hard cam, and your specified arrow.
Arrow dynamics .395 magnum yellow.
Carbon Express CXL 250.
Easton ACE 430 or 400
I like the fatter Arrow dynamics and CX shafts for fletching clearance. I have shot the CXL as a 3D arrow.
For hunting, I would use the gold tip or one of the Black Hawk hunting shafts that are a larger diameter. If I remember right they are pretty light.
Hope this helps.