Ford Dist and vacuum line question

[Jordan Baker]

Hi everyone.

Im wanting to get some parts from either Mac's antique autos or Dennis Carpenter repros. Im in need of the nut that goes into the vacuum control on the distributor.

My engine has the line already but it just loosely push fits into the threaded hole on the distributor. Im thinking this may explain lots of misfiring when the engine is under load.

I found that both Macs and Dennis Carpenter lists the vacuum tube.

DISTRIBUTOR VACUUM TUBE LINE
21A-12226 1 Each 1942-1948

Would this be what I want or need. Or is the nut something along the line of a brake line connector or compression fitting.