Alright, figured it out. It's going to take a 2.75" id to 2.5" od then a 2.5" id to 2.25"od which will then be welded to the exhaust up pipe. This will allow ne to use the flange that came with the kit.
Also having ny buddy clean up the ports on the exhaust manifold. He does a lot of pnp work for throttle bodies on boosted cars so im excited to see what he does on the old bird.
