Contour Enthusiasts Group Archives Forums Modifications 3.0L Duratec 3L rev-ability

I have a book on porting SBC cylinder heads. Gross/Net HP ratings not a factor with up to date modern real world dyno and flow testing.

Also, the NASCAR heads tend to be extreme improved versions of the old 60's style head chambers. Flow/distirbution is addressed with runner, manifold, mirrored port and head angle design.