[Paul Ceasrine]

H.O.

Here is the NHRA Class List

1967 Firebird Hardtop

326/285 HP - HO 'High-Output' = (11.02 Wt/Hp)
* 1967......C/S
* 1968......G/S
* 1969......H/S
* 1970......I/S
* 1971......I/S
* 1972......C/S or SS/K
* 1973......G/S or SS/K

400/325 HP = (9.82 Wt/Hp)
* 1967......B/S or SS/E
* 1968......D/S or SS/F
* 1969......E/S or SS/I
* 1970......F/S or SS/H
* 1971......F/S or SS/H
* 1972......A/S or SS/H
* 1973......D/S or SS/H

400/335 HP 'Ram-Air' = (9.38 Wt/Hp)
* 1967.....A/S or SS/D
* 1968.....C/S or SS/E
* 1969.....D/S or SS/H
* 1970.....E/S or SS/G
* 1971.....E/S or SS/G
* 1972.....A/S or SS/G
* 1973.....C/S or SS/G