Throttle body question
Throttle body question 
The stock 75mm is pretty much good to about 500rwhp but gets pretty limited at that point and beyond(when you get to 420rwhp and up a properly ported stocker is good for 10+@ the wheels). I suggest going with a 90/90 setup when you get to 460+, I suggest a ported TB anywere from stock to 450rwhp.
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From: The beautiful Kingdom of Bahrain
Ok. most people with my setup average 420+rwhp so Im thinking my stocker is holding me back. My friend gave me a ported t/b so if I can get 10rwhp off it Ill be happy. My setup only made 375.
Originally Posted by Honda Hunter
It's a HCI a4 4000 stall car.
