Tooter manifold / Corolla TB / DC Header / etc....

[cali yaris]

I think that was meant playfully, not as a real suggestion. At least I meant it that way. Sorry to confuse the issue.

if I remember they were marginal losses, and that was without a 1zz TB. Nothing like what I'm feeling / and not all where I'm feeling it either (I'm also feeling a lack of top end (not that it was a screamer before) )

Hey, you asked. I gave my opinion. Even a marginal loss is not a gain. Possible vacuum leak somewhere, maybe? Have you checked all the connections and listened for leaks?

You might try going back to a stock TB and see if that cleans it up at all. Our manifold accepts either throttle body, I'm not sure about the Tooter.

Remember, you've changed two or more things at once. It's best to change one thing at a time to see what the result is.