[Paul Ceasrine]

Geerhead,
Not a stupid question. Actually a good one.
In February 1967, Plymouth built 55 Belvedere II's and Dodge built
55 Coronet 'Model 440' cars, equipped with Hemi engines, to run specifically SS/B in 1967.
The 'R' stands for Plymouth Belvedere or Satellite, the 'W' stands for
Dodge Coronet. The 'O' means Super/Stock.
Hence, R/O or W/O.
The 67' cars in actuallity, had Street Hemi engines, but utilized a
special Arlon Vanke-modified stock in-line dual-quad intake, and
re-jetted Carter AFB carbs.
The cars came with a few other 'goodies'. Hood scoop, Super/Stock
leaf springs, etc..
The first major race for these cars was at the 1967 NHRA Springnationals,in June, which was won by
Sox & Martin in the Plymouth R/O car, in SS/B.
In 1968 you would find them in SS/C or SS/D..
Pretty much back then 11.50 E.T's.
Paul