SSP 034 Distributor with 12V Electronic Ignition and Vacuum Advance Beetle (1947-1979), T2 Bay (1968-1979), T2 Split Bus (1950-1967)Upgrade from points ignition with this SSP electronic ignition distributor. 034 advance curve with centrifugal and vacuum advance. Built in 12V electronic ignition module. Engine timing should be set after installation. Use a stroboscopic timing light. Timing should be set initially at 30 32 BTDC at 3,500+ RPM, vacuum hose disconnected and plugged. Maximum advance, at 3,500+ RPM, vacuum hose connected, with no load on engine (car sitting still), light