Another 440 duster need some help

MC: You can switch to any manual DB MC with a manual brake pushrod. Bore size will determine pedal effort.

Engine: I too used a Torker II manifold I had lying around with 850DP and iron heads.

Headers: TTI's and Schumachers are the most common, non-fenderwell headers for the conversion. You may have to deal with minor clearance issues with the TTI's. For a slight performance hit the Schumachers fit like a glove.