These shocks have a light weight design and offer lightning quick separation for maximum weight transfer. Dual stage valving on compression allows the car to settle on the top end. Calvert 90/10 Drag Shocks are available for most vintage Ford applications. They have an MSRP of $59.00 each. For more information contact Calvert Racing Suspensions at (661) 728-9600 www.calvertracing.com