Thought I'd offer some pics of the stock VS the modified turbo and plenum. You really don't get the difference until you see them side by side. The modified turbo is much bigger in comparison. What I've had questioned is opening the plenum as much as I did. What most people don't realize is that the spread bore carb has small primaries which enhances the low RPM response. The small primaries allow for more velocity of the air fuel mixture, and until the need comes up for the secondaries to kick in, it's pretty fast. This helps torque on the bottom and when the secondaries open, you get the big boost off the back 2 barrels.
