Description
PAC Racing Dual Valve Springs 1.490" (Set of 16) 2010483 We recommend the use of WEI7155 We recommend the use of Edelbrock Gasgacinch (Part #9300) on the intake manifold mounting surfaces of the cylinder head and on the bottom side of the intake manifold gaskets (side without silicon beads) 2005 2005 Ford Mustang and our High Tech Engine test lab Micro Hardness