What can happen if you have an uneven bore in your IM?
if the bore is obstructing the air flow path-... then yes you could loose (a miniscule amount of) power.
if the bore is larger than the tb then you may loose (a bit of) velocity which will affect your throtle response.
if the bore is larger than the tb then you may loose (a bit of) velocity which will affect your throtle response.



