This is a USED MSD RPM SWITCH part # 8950.
MSD 8950 RPM SWITCH IMCA IHRA NHRA WISSOTA Dirt Modified Mud Rat Rod ASA UMP LMS
MSD RPM Chips (21) plus 6 cyl, 8cyl and RPM chips
MSD RPM Module Selector #8671 NASCAR Xfinity 4600 TO 6800 RPM
MSD 87451 MSD RPM Modules 5000 Series Kit, Odd Increments
MSD RPM chips with holder, (29ea) NHRA, IHRA, Nascar, Sprint Car
MSD RPM chips, 17ea., for ignition box, NHRA, IHRA, Nascar, Hot Rod
