Porters or Smithy's ?

[JSeery]

Originally Posted by f1builder

it takes a bit for the smitties to get louder, been running mine for 2-3 months and they are starting to rack off. also, nothing against reds headers but steel headers don't give the sound i like, which is deeper. i run fenton cast iron headers. even stock cast iron manifolds sound better than steel headers imho.

Interesting. On most OHV engines I have worked on it's the other way around. Cast iron muffles the exhaust sound and steel headers seem to amplify it.