Factory cast iron intake manifold for 1970 Chevelle Camaro or Nova. has casting number 3965577. These were used on the 300/350 horse 350 cu in motors. Has a date code August 19, 1969 making it an early manifold. This item has spent most of its life sitting on a shelf. Some surface rust. I will let the next owner clean it as he sees fit. $100 will buy it.