Trying again for help. I am in need of a vac. tubing adapter from the mod.(5mm OD) to the steel tubing (4mm) running to the intake manifold on a 67, 327 cu in engine. It appears in some restoration mags as well as the original GM build info but no one seems to offer it. It's appearence resembles a bellows. Any help would be appreciated.
Thanks.
ababcockaanew.rrcm