The important keyword is "fully" ported heads. Almost all so called Stage 2 even Stage 3 cylinder heads are not fully ported. This can leave 20-30 RWHP on the table. I'm not talking about a full race port (contouring the valve stem boss, polished guides, etc.), I am just talking about a fully hand ported head. To properly and fully port a head it must be CNC'ed first then finished by hand. Of course it also depends on the cam selction. Bigger is not always better in some cases. You have to take the head flow and port velocity data and choose the appropriate custom grind to compliment the cylinder head's characteristics.
I will be doing heads/cams fairly soon and I am very interested to see what she'll do. I think there are a bunch more out there over 350 than people realize. There were more than I realized.
I will be doing heads/cams fairly soon and I am very interested to see what she'll do. I think there are a bunch more out there over 350 than people realize. There were more than I realized.