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Actually it goes into the bottom hole of the 5 (when in its normal orientation). The central hole is for the air temp sensor.
Yep your right don't even know why I put that!
The centre one is a larger thread for the ACT it could in fact go in any of the outer ones as they are all 1/8th NPT.
Rich
Last edited by Sonic Boom; 07-03-2011 at 09:11 PM.