Something to do with EGT on the car.
You'll see a ~1/4" hole in the exhaust ports connect up to the ports you mentioned, and they further connect up to the hole on top of the engine. On all the flying installations I've seen, the holes you mention and the hole on top of the engine are all covered up.

Finn

Scott wrote:

Good evening...

On a six port engine, what the are rectangular shaped
ports beneath the 6 genuine intake ports on the
housings?

(
http://home.att.net/~the_stouts_zenith_801/nv01-015.jpg
  )

Thanx...

-Scott





=====
Thank You.

Regards,
Scott Stout

http://home.att.net/~the_stouts_zenith_801

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