2-4bbl intake swap

hey guys i was wondering on something, im putting a eddy performer intake with a 4bbl holley on my 69 318, i was wondering are the gasket sizes/ports different sizes? Should i just get a set of 69 340 intake gaskets so that i know the intake port are the right size i dont wanna put a small gasket on a bigger intake port so it restricts alot, i dont think i'll be gasket matching since i wont be pulling the heads unfortunatlly.