I found shoebox ford from searching info here at the HAMB too. You're absolutely right! They have some great stuff over there! The engine runs a bit rough, not terrible but not sewing machine smooth either. And it smokes like a bug fogger when you rev it up lol!! I suppose it needs rings and or valve stem guids/seals. We haven't tried the overdrive yet. I'm not really sure how it works. I'm assuming you just pull the handle to engage OD. Assuming you get it up to cruise speed, let off on the gas for a second to unload the trans & pull the OD handle to engage?