In a nutshell no in my opinion. Rubber is ok in small diameter for short lengths of a few inches or so. 20" of vacuum will suck small diameter hose shut eventually especially next to a heat source. There is a good reason why this line was steel in the first place.

Steve]

Last edited by sstock; 04/10/2013 11:09 AM.

1953 Chevrolet 3100
261 cu inch, sm420, 3.55 rear, torque tube still,omaha orange, still 6 volt, RPO green glass, side carrier spare, all done
In the DITY Gallery
Video of the 261 running

1964 GMC 1000
305 Big Block V6, sm420, the next cab off restoration