For Big Block Chevrolet engines 1991-pontiac-firebird-esi6483971 Increase rear suspension handling by

Increase rear suspension handling by replacing your weak factory stamped steel rear lower control arms and rubber bushings control arms with UMI's heavy duty tubular adjustable setup

allows you to easily set pinion angle for drag racing applications or correct pinion angle to compensate for vehicle lowering

at degrees C 30 at neg 10 degrees C

00-inch long spun outer casing for ease of fitment in tight spaces along with High Flow 200 Cell Metallic Substrate for severe-duty/high temperature applications

EBC Redstuff ceramic pads reduce dust emitted by OEM pads by approx 80 percent

For Big Block Chevrolet engines 1991-pontiac-firebird-esi6483971 Increase rear suspension handling byThese kits were specifically designed to provide a "plug & play" cam position signal to Holley EFI systems, although they may be used with any EFI system which can read a digital, square wave input cam signal. They are intended for use with Big Block Chevy engines with a +. 400" raised cam height and (Jesel or similar) external, dry timing belt, cam drive systems.