Description
Isky Cams Single Spring Damper Valve Spring 280 lb in Spring Rate 0.970" Coil Bind 1.340" OD (Set of 12) 4704323 20 L Size: 1 1 2 Inch Square WEI7155 Size: 1 1 2 Inch Square Engineered by AutoMeter in Sycamore plus information on carburetion To properly evaluate and prove the efficiency of Isky racing cams and valve train components