1966

[Paul Ceasrine]

Frankie,
The Street/Comp classes were suggested, I think in 1972.
It was basically pre-set times
A/SC ~ 12.50
B/SC ~ 13.50
C/SC ~ 14.50
D/SC ~ 15.50
It was a hybrid-bracket. You built your car to run the class time,
not dial-in. So everyone knew what to shoot for.
The A, B and C classes had one class for stick, and one class for
automatic, to keep things fair. The D/SC class was open, for both
stick cars and automatic. In all, (7) fair classes.
This division was to be set-up for basic performance street cars,
that applied some modifications. Bolt-on stuff for the day,
Edelbrock intakes, Holley carbs, Accel distributors, Headers, Gears and wide street tires. Any engine modification was allowed. Scatter-shields,
steel bell-housings were required for the A/SC 12.50 class.
The rear tires could stick out from the fenderwell, but I think 9" wide or
L-60 design was the maximum size alllowed. Slicks were allowed of course. Fiberglass hood scoops and spoilers were allowed, and so were Tunnel-rams.
The set-up was simple, run your class, win, get a trophy and class winner decal. If you wanted to run Street/Comp eliminator (handicap) against the other class winners, you could, just by putting up $10. If all the class winners joined, there would be $70 in the pot. The winner would get
$40 and an Eliminator Winner decal, the runner-up $20 and an Eliminator Runner-Up decal. $10 to the track for handling fee.
That class would have pulled in an additional 60 to 70 cars per week,
PC

[Paul Ceasrine]

Frankie,
1972
Typical situation, kid has a 66' Chevy II with a 283 2-barrel and automatic. He wants to go the perfornance route, and race the
car occasionally (twice a month). He purchases a 350 4-bolt main from Chevrolet, Gets a set of used 'fuelie heads', an aluminum DP high-rise intake and 780 Holley (vacuum secondary). Throws on a set of
Appliance or Cyclone (cheapie headers). Gets a set of 4,10 gears, and a set of wide tires (G-60 x 14"). Pops in a Turbo 350.
Goes to the track, and would have to run C/MP or D/Gas. That would have been a one-time racer.
With the Street/Comp class., he could have easily run the
B/SC class (13.50 ET), and be pretty much right on. if needed a little more UMPH, he could easily add on another performance part.
The other way, his 350 LT-1 in a 66' Chevy II would be rendered useless at the track..,,,,,,,,,,,,Smart Marketing
PC