DEI Boom Mat - 12 x 12-1/2 in Sheet - 1/2 in Thick - Black/Silver (Pair) H759C01XL 10:1 to 20:1 AFR range

10:1 to 20:1 AFR range for gasoline applications

500" OD valve springs

Contrasting Red Leg Stripes

Cylinder Head Temperature Gauge

This arbor is designed to center a spring seat or valve guide cutter in applications with a 5/16" valve

DEI Boom Mat - 12 x 12-1/2 in Sheet - 1/2 in Thick - Black/Silver (Pair) H759C01XL 10:1 to 20:1 AFR rangeBoom Mat Damping Material solves the problem of noise, vibrations, squeaks and rattles that come from roads, stereos, engines & more. Boom Mat Vibration Damping Material is a premium quality damping material providing extreme noise damping for the most demanding commercial and sound competition applications. Interior panels vibrate and generate noise. Boom Mat stops that noise by trapping it between our thick, 4 mil aluminum stiffening top skin and