Bigger bore lower Boost cut?

Chello

New Member
Jun 8, 2011
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Victoria, Australia
Hi all,
Not sure if this in the right section or if has been covered, couldn't find anything.
But basically my bore is 20 thou bigger than stock, will that cause more air to flow through the stock AFM and trigger fuel/boost cut at a lower psi?
Was just thinking, 7mgte 20 thou over, ported head and staying with standard ct-26 for now if that helps at all.