ceramic coating the inside and outside of the manifold seems to be better bang for the buck than say extrude honing, keeps a big source of heat out of the engine compartment.


best of 11.24 at 119 mph 1.60 60’. 68 340 S Barracuda Fastback F.A.S.T [IMG]http://i67.tinypic.com/2mnnnnt.jpg[/IMG]