Intake Plenum Porting Diagram - Stock vs Ported Short-Side Radius Cross-Section

This document is a simple hand-drawn (computer-sketched) comparison diagram showing cross-sectional representations of an intake plenum in two states: 'Stock' and 'Ported'. The top drawing, labeled 'Stock', depicts the factory plenum runner cross-section with a red arrow pointing to the short-side bend, annotated 'Short-side bend has an EXTREMELY sharp radius.' The bottom drawing, labeled 'Ported', shows the same cross-section after porting work, with a red arrow and the instruction 'Lay this bend back as far as possible. Try to make the turn more gradual,' illustrating how the sharp short-side radius should be reshaped into a smoother, more gradual curve. Side text explains, with self-deprecating humor, that 'These are cross-sectional representations of our intake plenums…. Or at least what they would look like if you asked a preschooler to draw it out for you.' A reader learns the basic goal of a common DIY plenum porting modification: identify the sharp short-side radius inside the stock intake plenum and grind or reshape it into a more gradual bend to improve airflow. The document contains no part numbers, torque specs, year/model designations, or measurements — it is purely a conceptual before/after porting illustration.