GoWesty Crank Position Sensor System (Included with GW-EFI Kit) This crank position sensor system is a smart, fully bolt-on solution that comes standard with our GW-EFI kit. Designed for simplicity and reliability, it requires no modifications to the crank pulley or surrounding components. The system features fore/aft adjustment via the breather tower bolts—just loosen them to fine-tune positioning. Our custom Viton® seal remains in place during adjustments, ensuring a leak-proof fit with no need for additional sealant. Timing adjustment is equally straightforward: Just loosen the sensor bolt and turn the top-mounted M6 adjustment screw. That’s it—no fuss, no leaks, no compromises.Important note: This crank position sensor system is designed specifically for use with the GoWesty GW-EFI system. We do not guarantee compatibility or provide support if used with any other engine management system.