David Vizard, Uncle Tony's garage, Unity motorsport. Mission impossible Dodge 302 Head porting

I find it interesting to see how different people go about porting.

For example....... if I’m bringing a port opening out to a scribed line......... I generally get the opening to size first.

I also don’t change burrs as often.
Not that there’s really any right or wrong way to go about it........ the final shape being right is what matters.