This accessory features a professional air gap design that effectively boosts airflow beneath the air box, reduces engine heat transfer and helps increase vehicle horsepower for optimized power output. It comes with a double-plane square hole structure, universally compatible with all 4150 carburetors for strong adaptability. With an intake port size of 2.06" x 1.18" and an intake height of 4.65", the precise dimensional design ensures excellent intake efficiency and perfect installation fit. Expertly crafted, it’s a premium accessory for upgrading the engine intake system and enhancing power performance.