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Old 10-11-2019
B.Nyhof B.Nyhof is offline
Senior Member
Join Date: Jun 2012
Location: Hamilton
Posts: 281

The 1/4 hose ties into your air intake on the manifold. I think it’s a tell tale gauge to let you know your air filter is good or bad. It has a reset.
Brian Nyhof
Hamilton, MI
1989 SP 36
1982 FC35 SB-----SOLD.
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