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On the rear of my intake manifold there are 2 plugs directly over 2 water passages on the heads. What are they for? Also since it's summer would there be and cooling advantage removing the thermostat?
 

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I'll get a picture on this post if it kills me........


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My old intake had those. You can run a hose there if you want. It's supposed to kind of "even out" the temperatures between the two heads. If you have an overheating problem, it may help a bit.

I didn't bother with it. I wanted to, but in the end, it was more work than I thought it was worth. Plus, the hose would probably get in the way of the distributor.

Matt :kirby:
 
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