QA1 Pro Rear Coil-Over Shock System w/ Single-Adjustable Shocks GBDL3 Available with 4150/4160 and 4500

Available with 4150/4160 and 4500 Series Holley® bolt patterns to fit a variety of carburetors

Since this distributor has its own ignition module there is no need to run an MSD Ignition Control

This Eliminator Double Adjustable drag shock features our BNC compression to take the "bounce" out of wheel-standers and has extra-stiff rebound to slow front end rise on high hp applications

many engine builders actually modify the distributor's reluctor to obtain different timing for each specific cylinder

1980-1981 Pontiac Firebird

QA1 Pro Rear Coil-Over Shock System w/ Single-Adjustable Shocks GBDL3 Available with 4150/4160 and 4500Upgrade your rear end with QA1's Pro Rear System. Available in double adjustable, single adjustable and ride sensitive valving non adjustable options,each adjustment has been carefully defined to provide the ideal horse curve to maximize performance. With evenly spaced valving changes throughout the adjustment range, there are no jumps when adjusting between any two clicks. These Pro Rear Systems are commonly used in drag racing, street performance