[blykins]

The Pro Port head is basically a raw casting that is not anywhere near finished....

Now, with that being said, the Pond head has unfinished seats, unfinished guides, and needs some work to smooth out the CNC work, but the Pro Port heads are ROUGH. The intake and exhaust ports are tiny so that they can be manipulated, chambers are unfinished, etc.

Blair and Jim build engines that have more horsepower demand than the street/strip engines that are built for Cobras and other weekend warrior toys. They mainly specialize in engines for classes like the NHRA SS class, etc. When you modify a head for this type of application, expect to see up to 1" valve lift, valve locations that have been moved, port locations that have been moved, etc. They typically require some specialized support parts and just aren't cost effective for a street engine.

Pete, the Pond heads have a lot of potential. I talked with Robert pretty extensively about them. I haven't used them before, but I told Jeff and Anthony that if they don't perform, I'll have them professionally ported on my dime. They have more of a heart shaped chamber, and a new design for the exhaust ports, so I expect them to fair quite nicely. Be patient.