MSD - Adjustable Timing Control Water Neck - 45 Degree

Water Neck - 45 Degree - 1-1/2 in ID Hose - Gasket / Hardware Included - Steel - Chrome - Oldsmobile V8 - Each

Access Door - 6 in Square Door - 8-1/8 in Square Overall - Frame / Hinge / Hardware Included - Aluminum - Natural - Kit

Fitting - Adapter - 90 Degree - 12 AN Male to 3/8 in NPT Male - Steel - Zinc Plated - Each

Pressure Gauge - 0-30 psi - Mechanical - Analog - 1-1/2 in Diameter - Liquid Filled - 1/8 in NPT Port - Black Face - Each

Valve Cover - Tall - Ball Milled - Baffled - Breather Hole - Grommets - Bowtie - Aluminum - Polished - Big Block Chevy - Pair

MSD - Adjustable Timing Control Water Neck - 45 DegreeA dash mounted control knob allows you to adjust the ignition timing to compensate for changes in altitude, low octane gas, or heavy loads. For cars driven every day but raced occasionally on the weekends, this control is perfect. Increased fuel mileage and performance are just some of the benefits as the ignition timing can be advanced or retarded to prevent engine detonation.