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vacuum is 21 psi. But it like stay 10-15 psi when drive highway 55-65 mph.
block heater it didn't came with. Does that will improve mpg how much? Saw auto zone sell for $31 that go in radiator hose.
Will try change t-stat it better be improve mpg or I wouldn't be happy.
For fuel pressure it too much work why there are manifold block that. 1/2" room.
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