1.160" Od. 7 Degree 8mm Chromoly Steel Valve Spring Retainers [LS Dual] This body has a much

This body has a much larger diameter then your existing throttle body

Our rear-ends have a reputation for being tough to handle the abuse of Circle Track

These Speedmaster TDS rear housing ends will get the job done

or larger wheels to clear them

These MidAir Series Manifolds includes a 4150 Series 1200 CFM Billet Throttle Body

1.160" Od. 7 Degree 8mm Chromoly Steel Valve Spring Retainers [LS Dual] This body has a muchSpeedmaster chromoly steel retainers are made from 4140 chromoly and then heat treated for long life. These retainers are available in a variety of lock angles and sizes to suit your needs, from performance street to competition use.