Collector Size

Engine, 414 stroker, dynoed at 512hp and 525tq through a set of 1 3/4 hookers. I ran it for a while through a pair of Dougs and ran very consistent 7.17 @ 95mph in the 1/8, with a best 7.06 through a 2 1/2 x pipe exhaust with cutouts. 1.55 60'.

I installed some hooker 5303 1 7/8 headers, but haven't ran it yet or installed an exhaust. The collectors are slip on 3", and I have been trying to figure out if I should put 3.5" collectors on. I don't plan on doing an x pipe, just straight duals through race mufflers dumping in front of the axle through turn downs. Should I go with:
3" collectors to 3" pipe to muffler or;
3.5" collectors to 3" pipe to muffler or;
3.5" collectors and pipe to muffler?
Plan is to use Hooker Max Flow mufflers.