Starting a BB Duster project

Andyf, what size headers are you using? I ask cause my TTI 1 3/4 are tight and can’t figure why I see others with bigger headers on a low deck.

The headers in this picture are the Schumacher tri y. They fit okay but I think they would fit better on a RB. It looks like they were designed for an RB. On a B block they are pulled in a little too far to the engine and they hit in a few spots.