Proform Calibration Spring - Medium - 50 - 450lbs R080003S Accepts early-style water neck only

Accepts early-style water neck only

For use with wires with sleeve

Low-Saturation Ignition Module

Knurled Grip

1963-1971 Chevrolet Corvette

Proform Calibration Spring - Medium - 50 - 450lbs R080003S Accepts early-style water neck onlyProduct Description: Calibration Spring Medium 50 450lbs Steel Natural Sold Individually PROFORM invites racers to experience the strength, innovation, and power behind the PROFORM brand. PROFORM Parts (Specialty Auto Parts U. S. A., Inc.) is a leader in the High Performance Automotive Aftermarket by engineering and manufacturing creative products from intelligent concepts. Our goal is to provide the performance enthusiast with innovation, quality,