Is it a stock intake, dual or single plane, and how much?

850 demon is still available it is in great condition asking $350 for it. I have a few different intakes I have a stock cast intake oval port also have a edlebrock dual plane oval port. for square port I have a team g that fits 1050 carb and I also have a offenhauser dual plane intake

Sounds like you have all aftermarket parts?

I am looking for a stock GM #6269316 dual plane 4 bbl intake.

Are the square port heads alum? If so what brand

sorry stinger 390x I don't have the intake your looking for. the heads I have are not alum they are cast iron.

Looking for ""SQUARE PORT" GM 6269316 aluminum dual plane.

Thanks for the quick reply