Bettywhitevette501

Just trying to get a few answers here soon I’ve recently purchased my first Corvette it’s a 2016 2LT Base with Mag Ride but has Z51 wheel package 245/35/19 front 285/30/20 rear stock. I’ve been dealing with custom wheels and tires since 2002-2003 so this really shouldn’t even be an issue but I just ordered a set of continental DWS06 255/35/19 front 305/30/20 rear thinking they should fit without any issue at all… 10mm width front .25” height 20mm rear .5” height someone please tell me I not wrong here