HRP Sprint Car Nose Wing and Super Board Sides 4704323-10- S Adjustable mechanical and vacuum spark

Adjustable mechanical and vacuum spark advance for easy setup and use

Convert a 2" taper per foot hole to accept a ball joint with a 1-1/2" taper per foot

The Falcon Transmission Roller Slide Transmission has all the advantages of more drive line travel and less maintenance

Complements Edelbrock's new 351C performance RPM cylinder heads

HRP Sprint Car Nose Wing and Super Board Sides 4704323-10- S Adjustable mechanical and vacuum sparkSuper Nose Wing Is Tall and Angled With a 1" Dish For Increased Downforce. Hepfner Racing Product's Exclusive Recessed Rivet Design Means Greater Strength, Improved Aerodynamics, Quicker Mud Removal and Easier Vinyl Application. CNC Punched and Formed, Each Wing Is Identical. Hepfner Racing Products, family owned, has led the industry with superior designs and the latest in manufacturing technology. HRP offers a wide selection of racing products and