PAC Racing 300 Series 7 Degree Valve Spring Retainer 0.920 in 0.650 in OD Steps 1.280 in Dual Spring Chromoly GM LS Series Set of 16 359105 Years of engineering experience and CAGC5512 036 Years of engineering experience and modern technology allowed Performance Distributors to develop a high voltage coil and high dwell module that would turn the high revas needed for todayas racing engines Stores 2 ET Has the ability to store two times in memory allowing for large number changes without a lot of time wasted scrolling Xray Diffraction We continue to expand products and offer expanded onsite technical services at various racing events