Tti 1 7/8 headers

Well with a supercharger (I assume), unless you are bringing it in very late, the longtubes are not gonna bring much to the table, that shorties can't,and those shorties are are gonna be so much easier to work with.Just couple them to the biggest baddest maximumest headpipes that you can reasonably fit in/up there,all the way to at least the the biggest baddest maximumest mufflers.lol
Actually at 6/8psi,and on the street,dual 3s all the way to the bumper should do it.I mean you are building an engine that you can't floor it for more than about 5 seconds at a time, and you will be still in first gear,so the engine is very lightly loaded. It might even be OK with 2.5 after the muffs; and those will be a tad quieter than 3z.