Cutting out a section of the plenum divider is an old racer trick to get more high RPM horsepower out of the stock manifold. Pick up a copy of "How to hot-rod small block Chevys", the method is explained in this book.
I'd say the value is $250-$400 depending on condition. What's the date code?
I'd say the value is $250-$400 depending on condition. What's the date code?