Quadrajet Power
APT screw with spring, used
$9.99
Used internal APT (Adjustable Part Throttle) screw with spring. New items are available here: APTstud: https://quadrajetpower.com/apt-stud-internal-adjustable-part-throttle-screw/ APT spring: https://quadrajetpower.com/apt-internal-tension-spring-new/
US-sourced parts. Orders ship same or next business day from Boerne, Texas.
