Originally Posted by 89Saleen141
I am really new, I was wondering if I am not planning on forced induction, what would the differences be with the 65, 70, and 75mm throttle bodies on the engine? All I have on the car is a set of long tube headers, flowmasters, and 3.55 gears.
Sequentially larger bores with the 75MM likely being too large for your mods.
With stock injectors I'd go with the 65MM.
With 24lb injectors I'd use the 70MM.
You also need to check the size of your intake opening.
A smaller intake opening can cause some unwanted restriction and turbulence in the air flow and possible hanging of the TB blade.