Manley Pushrod, P/ROD-4130 5/16 6.450 1991-pontiac-firebird-esi6483971 We recommend using this with

We recommend using this with UMI Afco shocks

Or Timing Retard Based On Time Rather Than Rpm

The spherical bearings in BMR's rear Lower Control Arm Spherical Bearing Kit simply eliminate bushing deflection

095" 4130 CrMo tubing and 100% TIG welded

drilling or welding

Manley Pushrod, P/ROD-4130 5/16 6.450 1991-pontiac-firebird-esi6483971 We recommend using this withManley Performance Pushrods are engineered to deliver uncompromising strength, stiffness, and valvetrain stability in todays high performance engines. Manufactured from premium materials and precision heat treated for maximum durability, Manley pushrods are designed to resist deflection under high spring loads and extreme RPM conditions. Consistent wall thickness and exacting tolerances ensure reliable valve timing and long term performance in both