The mounting for the throttle body plenum is identical. Type I on left, 3.5RL on Right.
The throttle bodies are identical except for a vacuum tube. The fuel purge vacuum nipple is relocated from the front of the throttle body to a 90degree elbow on top of the throttle body. The throttle body plenum is obviously different, fast idle valve is re-located and the vacuum nipples are completely different. The sensors on the water passage are swapped. Type I on left, 3.5RL on Right.
The throttle bodies are the same size. Type I on left, 3.5RL on Right.
The VIS system flaps are 100% Identical. Type I on left, 3.5RL on Right.
The lower part of the plenum mounts up identical, but has a extra plate to block the EGR flow, I like this design much better. Instead of distributing the carbon throughout the manifold, it just stays right in that spot. Type I on left, 3.5RL on Right.
