ORIGINAL: Ken6PPC
OK, I'm not really surprised to hear that. The small amount of oil from the breather shouldn't make a significant difference. However, you said that more oil won't make ANY difference, and it does. It reduces the amount of actual power-producing material that can be introduced into the cylinder. In small amounts, it may not be noticable, but it DOES make a difference.
However, note that you introduced the breather into the MANIFOLD, not the carb body. I imagine you are using muffler pressure or some other means to pressurize your fuel system too, right? If you had experienced a large loss of performance after making the modification, wouldn't you have bought a new manifold, so you could get your engine back up to stock performance?
I just think that this is a failed experiment, and in order to get back to what the stock performance was, he should go back to the stock configuration.
I think he went back to stock and got the same result. I did not say that large amounts of oil will not affect performance- please show me my post where I said that, I thought it was you who mentioned 95%!! I was looking at breather oil expulsion volumes.
The fact of the matter is that the experiment worked for me because i knew it would. I tapped the manifold because tapping the carb body wrongly could cause leaks in the throat. That would mondo trouble!!