Lookin for NHRA Stock Class ET/MPH from 1970-71

Dwight Southerland · 12-30-2016, 03:51 PM

eg 1967:
Was the "325hp" Firebird RA1 up-rated to the "360hp" Tempest RA1 rating? (which I assume was left as-is at 360)? Were both the stick and auto cam engines left with the same rating? Yes.

1968:
So, was the "335hp" Firebird RA1 up-rated to the "360hp" Tempest RA1 rating (which I assume was left as-is at 360)? Were both the stick and auto cam engines left with the same rating? Yes and yes.

1968-70
Was the base "330hp" Firebird up-rated to the base "350hp" Tempest rating? No. 1968 Firebird was left at 330. 1969 and 1970 Firebirds were 350.

1969:
Was the "335hp" Firebird RA3 up-rated to the "366hp" Tempest RA3 rating? Yes.

1970:
Was the "345hp" Firebird RA3 up-rated to the "366hp" Tempest RA3 rating? 345hp Firebird and the 366hp Tempest were both at 366. The 370hp RA IV engines in 1969 and 1970 were at 380.

12-30-2016, 03:51 PM	#11
Dwight Southerland VIP Member Join Date: Dec 2001 Location: Arkansas - In the middle of everything. Posts: 2,000 Likes: 64 Liked 777 Times in 193 Posts	Re: Need a couple more- Lookin for NHRA Stock Class Factors eg 1967: Was the "325hp" Firebird RA1 up-rated to the "360hp" Tempest RA1 rating? (which I assume was left as-is at 360)? Were both the stick and auto cam engines left with the same rating? Yes. 1968: So, was the "335hp" Firebird RA1 up-rated to the "360hp" Tempest RA1 rating (which I assume was left as-is at 360)? Were both the stick and auto cam engines left with the same rating? Yes and yes. 1968-70 Was the base "330hp" Firebird up-rated to the base "350hp" Tempest rating? No. 1968 Firebird was left at 330. 1969 and 1970 Firebirds were 350. 1969: Was the "335hp" Firebird RA3 up-rated to the "366hp" Tempest RA3 rating? Yes. 1970: Was the "345hp" Firebird RA3 up-rated to the "366hp" Tempest RA3 rating? 345hp Firebird and the 366hp Tempest were both at 366. The 370hp RA IV engines in 1969 and 1970 were at 380. __________________