Howards Dual Valve Spring Kit - 413 lb. - 1.100 in Coil Bind - 1.500 in OD - Locks / Chromoly Retainers WIL140-11401-DR Increased velocity by 5-10% for

Increased velocity by 5-10% for impact testing on the 2nd hit across all shell sizes

Hedman Hedders HTC Hedders Exhaust Header 69446 Tube Size 1 5/8 in

Fel-Pro performance intake manifold gaskets and Fel-Pro solid-core intake manifold gaskets

Smaller Housing With Improved Efficiency

Howards Dual Valve Spring Kit - 413 lb. - 1.100 in Coil Bind - 1.500 in OD - Locks / Chromoly Retainers WIL140-11401-DR Increased velocity by 5-10% forProduct Description: Valve Spring Kit Dual Spring 413 lb in Spring Rate 1. 100 in Coil Bind 1. 500 in OD Locks Chromoly Retainers From the humble beginnings of Howards to an industry leader today, Howards Cams has not forgotten the customer from the novice to the most sophisticated race teams. Howards Cams main objective is to produce the highest quality product at a reasonable price. The name Howards Cams has been synonymous with high performance