Hi, guys, on a 347 Build - using a R series TFS intake.. and having a custom cam made after choosing a cylinder head to match the intake... could you guys give me some advice on choosing cyclinder heads that would pass emissions with the r series tfs intake on a 347.. Thanks ...
Well that's pretty sweet.. what about the heads though.. are tfs track heat heads emissions legal.. more importantly will they pass the emissions test and are those heads the best matched to the r series intake.. or should I go with something else.. that will be ok for emissions.
the only heads that I can think of that are emissions legal are the TFS twisted wedge heads, aluminum, and the World Products windsor jr heads, cast iron. I have the windsor jr heads and some things about them made me unhappy, and I would rather have the twisted wedge heads, but they also cost more. The twisted wedge will also make more power.
You have 3-4 different threads asking the same questions. And then reply to your own thread multible times. The best advice was already given to you. Ask your cam builder!
You have 3-4 different threads asking the same questions. And then reply to your own thread multible times. The best advice was already given to you. Ask your cam builder!