Very good question. I am sure Chris and Ted will chime in as well. this is how the rule reads for heads. And material of heads-
2.03 Cylinder Heads*: Cylinder Head MUST be of correct OEM casting, have correct original casting numbers and be of correct original OEM material. If using a factory correct Replacement Cylinder Heads* the following criteria must be followed. The use of a Factory OEM Replacement Cylinder Head* that has no performance gain over the original part number Cylinder Head is allowed. From my understanding Ram air V heads were not delivered on a Pontiac. Going by the rule they would have a performance gain and being of an alternate material they would not be allowed.
Our certification process is very cool
![Bow :bow](./images/smilies/bow.gif)
. Certifications runs on a points system, to be certifiied you need to be below 20 points total. Every item on a car is awarded a points value. Certain items have a greater value, ie. cylinder heads, intake and exhaust manifold, tires, junk in the trunk, traction control ETC. By having one of the above mentioned items not be correct on your build would automatically put you over the 20 points max needed to be certified.
Cylinder heads need to be of the correct material. If using replacements cylinder heads they need to have no performance gain over the original casting head before you start porting or reworking them. Once you have reworked them if they flow better than an original set that is OK.