Willy's 604 Carb features Holley HP mainbody, 750 baseplate w/stainless steel butterflies and Teflon bushed throttle shafts, and Willy's externally adjustable metering blocks that allow jet changes with a flick of the wrist. Each carburetor is dyno tested and tuned specifically for the GM 604 Crate motor’s high vacuum camshaft profile.

Please note:  This item has a 3-4 week lead time.