1. carb heat/outside air switch box
2. arm that moves the carb heat/outside air baffel
4. carb
5. carb drain line
6. carb heat scat tube
7. clean outside air scat tube
8. air filter box
9. air filter element
10. outside air scat tube, connects to where grumman's light was

In no order because I'm clueless my self:

• The air comes rushing into the carb heat/outside air box and can't make the 90^o degree turn. So most of the air goes to #1 and #3 while #2 and #4 get starved of air.
• The Precision (425-353-8181) 10-6019 (HA6) carb for the o-360-a4k has a better atomizer for better mixture distribution than the 10-5219 we have in our American General Tiger (AG5B).
• intake port casting is very ruff restricting the flow into cyl #2

If you have any ideas how to cool an American General Tiger #2 cylinder please let me know.