FixVault

Ignition Timing

Set timing with engine at 850 RPM (Except 400" engine with double snorkel air cleaner, which is 1250 RPM). Set with distributor vacuum line disconnected and plugged. 

350" 2-Bbl. 5° BTDC
  4-Bbl. 7.5° BTDC
400" 2-Bbl. 5° BTDC
  4-Bbl. Auto. Trans. (1) 7.5° BTDC
    Synchro-mesh (1) 2.5° BTDC
455" 2-Bbl. 310 H.P. 5° BTDC
    320 HP 7.5° BTDC
  4-Bbl. (1) 7.5° BTDC
(1) Air Cleaner with double snorkels, set at 10° BTDC.