1971 old rule book question

[prostockpete1]

Anybody have a 1971 rule book and find Superstock section & look to see what was allowed for intake manifolds. ..could you you use any after market branded manifold or just a OEM one to match engine brand

[Rory McNeil]

Oldest rule book I have is 1973, by then, at least any intake permitted, providing it was the same configuration, and fit under the stock factory hood.

[Bill Rolik]

Originally Posted by prostockpete1

Anybody have a 1971 rule book and find Superstock section & look to see what was allowed for intake manifolds. ..could you you use any after market branded manifold or just a OEM one to match engine brand

Pete,

I have a 71 Rule Book. Here is the text:

MANIFOLD, Super Stock:

Cars competing in the Super Stock classes are permitted the option of using any intake manifold, provided the unit is of the same basic configuration as the original factory unit for carburetor used. ORIGINAL MANIFOLD, PORTED TO SIZE OF STOCK CYLINDER HEADS, PERMITTED, BUT CYLINDER HEAD MUST NOT BE PORTED OR MATCHED TO INTAKE MANIFOLD. Optional manifold must not deviate from original design in height, width, and length more than 1 inch. A 1-inch spacer is permitted between the carburetor(s) and stock manifold, or with a replacement manifold with the same measurements as the original stock manifold.

Hope this helps!

Bill Rolik

SS 1514

[prostockpete1]

Thank you Bill..that's the answer I thought was correct in 1971 any manifold could be used with only approved modifications noted