Using rectangular port intakes on oval port heads

[nuch_ss396]

Hey guys,

I decided to spin this topic off of a topic I started last
week on the '163 intake. From a few of the responses posted
it appears that other members here have had experience with
running rectangular port intakes against oval port heads.

How is it these off-design combinations even work properly?

It would stand to reason that running a rectangular port
intake mated to oval port heads would pose all sorts of
runner turbulance issues and hence cause the big block
engine to suffer performance problems. Yet, some members
have experience with this combination and claim it runs
remarkably well. How is this possible? I am hoping some
big block knowledgeable members here can enlighten me.

Steve