v-tronic electronic ignition hand advance - 36-47 Flathead/ 36-47 Knucklehead

V-TRONIC, ELECTRONIC IGNITION FOR 6 & 12V. HAND ADVANCE
With hand controlled advance, like OEM. This is a proven, tried and tested ignition module. Hall sensor type. Works with 6 and 12 Volt system and will never need re-adjustment or other maintenance. Shorter opening duration increases spark intensity by 60%. Fits to stock base plate. Note: See 519443 for the same ignition module, but with an automatic electronic advance system, with 9 adjustable curves.
Fits: > 36-47 B.T. Flathead; 36-47 Knuckle and 38-47 WL, WLA, WLC