XE282S in my 408??? Big enough or bigger?

In process of purchasing parts for my 10.2:1 408 build. Edelbrock heads are ported and now flow 275/200 @ .600 I already have an XE282S .520/.540 solid flat tappit, but wondering if I should go bigger. 3100 lb street/strip duster with 3:91s 28 " tires 3800 stall,RPM air gap, and holley 850 or 950 Also wondering if I should go with less of a stall. Im used to the high winding 340 so this will be an all new animal for me