Quote:
Originally Posted by UNKNOWN_370
Is the tune necessity something associated with berk or HFC's in general?
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There's a "rule" that you need a tune if you do Intake/HFC/CBE because it is usually enough to throw your a/f out of whack to where it needs correction. It's possible that you might need a tune after just two of the three, but in general you're usually OK unless you do all three.