* Stock 350 Characteristics: Stock 350 Chevy engines are generally low-to-mid-range torque oriented. They're not designed for the high-RPM performance a 2x4 intake is meant to support.
* 2x4 Intake Purpose: A 2x4 intake manifold is designed for higher RPM applications, typically in racing engines with significant modifications like larger displacement, high-lift cams, and high compression. It's optimized for high-flow at high RPM, sacrificing low-end torque.
* Performance Impact: On a stock 350, the 2x4 intake would likely result in a significant loss of low-end and mid-range torque, making the engine feel sluggish and unresponsive at typical driving speeds. Any potential high-RPM horsepower gains would be minimal and likely unnoticeable in everyday driving. The engine would struggle to "fill" the larger intake runners at lower RPMs.
* Better Alternatives: For a stock 350, a stock replacement intake manifold, or a performance intake manifold designed for a stock or mildly modified 350 (like a Performer RPM), would provide significantly better performance gains and driveability.
In short, while fitting a 2x4 intake is mechanically possible, it's a poor choice for a stock 350. It's the wrong tool for the job and will likely detract from the engine's performance rather than improve it.
