[Keithc8]

We use the Edelbrock for our street engines where the customer wants to install all stock location stuff. They work for most applications where we want to make 550HP stroker for the street.
If I was doing an all out project or something like the Engine Masters I would look at some different heads. The main thing here to consider is what you are bolting to the head because if you get away from a stock style intake and header you should go to a nicer Ford Racing D1 or Blue Thunder head. If you want to use a stock header or manifold the heads mentioned above would work nicely.
I have quite bit of expirence with the 351C engines myself having set several NHRA records in past with my own 1971 Mustang with a 351C engine. We have done some pretty neat stuff with the stock heads as well and gotten 360/260 cfms out of them. There has not been as much demand for them over the last 20 years with the block problems that they have had. This is one reason you see a lot of them done with the SVO blocks.
We build and port them all so it just depends on the end use of the engine.
Good luck, Keith Craft