is my accufab 75mm throttle body hurting me more than it is helping me.
i have heard from others that it takes too much low end, which it does feel like to me. but i can defiently feel it in the top end that it helps(either that or the plenum)
With 4.10s you likely don't stay in the low end of the RPM range for very long. No, I definately wouldn't put the OEM one back on. A 70mm might have been better (and this is exactly why I went with the 70 on mine - I was afraid of what you are describing), but I think the difference is minimal. Take a look at the plenum shootouts over at www.modulardepot.com - complete with graphs so you can get a good idea of what a 70 will do as opposed to the 75 that you have.