Hans Conser wrote:

 This is on ebay, try a search for rx7 turbo manifold, I don't recognize
 this one, thought it might be useful to someone.

Looks like a Weber carb manifold. Should work great if you have enough
room on top of the engine under the cowl. Probably tuned for 8500 RPM
but you could make and extension for it.
Paul Lamar

   Looks like the one that Atkins makes.

  Ken Welter

I doubt it. If you asks him about any part.... he makes them all! :)
It's on the Mazdatrix web site. I'll bet that manifold has
been around for at least 20 years. Maybe 25.

BTW that manifold will not fit the hot tip stock 87-92 turbo and turbo 
exhaust manifold if you are thinking of adding a turbo later.

Jerry Hey and I asked Dave about this low profile water pump neck 
at Seven Stock in 2002 and Dave told us "he made it". Turns out
it is a stock part probably from an early 12A or 13B. RX2 to RX4. I forgot
which.
 
Paul Lamar
 
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