Supertech Dual Valvespring + Retainer Kit - H/F Series Carbon Trims & Plates Furthermore

Furthermore

Silver Spark Plugs provide many unique and beneficial characteristics

Super rear and now super available

See photo below for visual reference

but you still had to deal with the tedious and time-consuming task of block and girdle notching

Supertech Dual Valvespring + Retainer Kit - H/F Series Carbon Trims & Plates FurthermoreSupertech Dual Valvespring + Retainer Kit H F Series Supertech Dual Valvespring + Retainer Kit H F Series All Supertech valve springs are made with premium Superclean Chrome Silicon Vanadium Steel alloy for higher performance & durability at high rpms. Using high quality steel alloy also provides the added benefit of better structural memory for all of our springs. Supertech retainers are manufactured with high quality military certified Titanium