Up for sale is a stock intake for the 70-91 engines. It will fit the 304, 360, 390 (70 only) and 401. It is in excellent shape. I blasted it to remove some light rust/paint/oil ... still have a little more blasting to do on it.
It is available as-is for $100. If you would it powdercoated, then that would be an additional $50 and we can work out the color of choice, and I'll include a thermostat housing and oil filler tube.
$100 - as is.
+ $50 for powdercoating (w/T-stat & oil filler tube)