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5 in Collector - Gaskets / Hardware Reducers Included - Steel - Silver Ceramic - Mopar RB-Series - Mopar B-Body / E-Body 1963-72 - Pair
580 in - Duration 300 / 306 - 110 LSA - 3200 / 6200 RPM - Small Block Chevy - Each
475 in - Duration 263 / 261 - 114 LSA - 2200 / 6200 RPM - Small Block Ford - Each
5 in 5x5 Pin - Steel - Natural - Each
MSD - Boost Timing Master for use with MSD Ignition Control 5 in Collector - GasketsThe Boost Timing Masters allow you to adjust the amount of ignition retard from 1 per pound of boost to 3 per pound via a control knob that you mount on the dashboard. This way you can make adjustments on the fly to prevent detonation as fuel quality or altitude and air quality changes up to a maximum of 15 retard. You can also set a boost pressure point to start the retard. There is a boost pressure port to connect to your manifold and the BTM wires