408 stroker header size

MOPAROFFICIAL said
If he isn't running a 3" or bigger exhaust, what diff does it make, the pipes will choke it.
Run a 1 5/8 or 1 5/8 to 1 3/4 step, as long as you hook it to 3" + pipe the difference is slight until you use a real race cylinder head.

I am interested in how the TTI W2 1 7/8 headers fit, I have a 68 Dart with a 408 and now have Tubular Automotive 1 7/8 they are worn out and am debating between them and the TTIs I like the idea of getting away from the 90 degree filter adapter