PWK vs OEM carb (what changes)

A Keihin PWK-style carb typically offers crisper response and more tuning options than many older OEM carbs.

The trade-off is setup quality matters more: cable, slide, needle, float height, and leak-free intake.

If your engine is close to stock, the OEM carb can run great. PWK shines more as airflow and RPM increase.

• PWK pros: crisp response, lots of needles/jets, strong aftermarket support.
• PWK cons: needs correct setup, picky about leaks and cable/slide alignment.
• OEM pros: proven, often easier on stock setups.
• OEM cons: limited tuning range for heavy mods.