Here's why I don't like hypereutectic pistons. This piston was not extracted from the motor, it disintegrated into a billion grains of sand. Difference between a $150 super deal on a hyper piston and a $500 Mahle, or SRP forged piston sounds like $350 worth of insurance something like this isn't going to happen to your investment.
Out of the box, no 'additional' work, bolt em on and make GOOD power... my preference is AFR. For a 350 keep runner under 200cc, put lift up a high as you can make with whatever cam/rocker you have available. Closer to .65 lift you get the more power you will make.