I don't know about any other porting shops but my stage III goes right through to the bowl.
Your heades look like a port matck and a bowl blend on the intake side.
The exhaust is a little harder to say with the pics you took,but looks like a stage II.
I would flow those and compare the #s that they said it would flow,and I would bet that they don't match
From memory a stage III Canfields flow 305-315cfm.
But don't quote me on it.
I also have a problem with sharp edges in the combustion chambers,but thats just me.I'm a perfectionist so I'm very hard to please
Tom...
www.tkmotion.com...514-920-0094...14 NHRA Records...Porting...Flowbench...Making the fastest cars
faster...Perfection got us there!!!