Roger - sounds like an Odyssey PC925 is in your future if you have any doubts about the PC680 size. That PC680 does mine fine, but all I have electronically is the MSD (and of course, the tune player)

As far as USPS - been waiting for an Edelbrock rebuild kit that was sent priority mail last week. No clue where it is except the PO 'knows' it's in their system somewhere between Hither and Yon.

REMEMBER - the USPS is BILLIONS in the red, and that's just this month