Nice write up on the CHI heads! CHI also makes a single plane air gap intake manifold for a 9.2 deck height Windsor/Fontana block. They make their heads with a standard height uni-port exhaust configuration and a raised exhaust port configuration. The raised exhaust port configuration fit perfectly on the passenger side of my Pantera, but just barely touched the gas tank shield on the drivers side. This was not an issue and I only recently noticed it. I attached a photo of the 9.2 deck 3V CHI intake manifold that fits a Windsor or Fontana block.
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